Home / 139,332,021.96-192,266,378.10-76,604,750.40

Finding the Fourth Proportional to 139,332,021.96, 192,266,378.10 and 76,604,750.40

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Solution

The fourth proportional to 139,332,021.96, 192,266,378.10 and 76,604,750.40 is: 105,708,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,332,021.96 : 192,266,378.10 = 76,604,750.40 : x
  2. Step 2: Convert to fraction form
    139,332,021.96/192,266,378.10 = 76,604,750.40/x
  3. Step 3: Cross multiply
    139,332,021.96x = 192,266,378.10 × 76,604,750.40
  4. Step 4: Simplify right side
    139,332,021.96x = 14,728,517,904,662,526
  5. Step 5: Solve for x
    x = 14,728,517,904,662,526/139,332,021.96
  6. Step 6: Final answer
    x = 105,708,061.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.