Home / 139,750.48-192,853.20-76,087.18

Finding the Fourth Proportional to 139,750.48, 192,853.20 and 76,087.18

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Solution

The fourth proportional to 139,750.48, 192,853.20 and 76,087.18 is: 104,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,750.48 : 192,853.20 = 76,087.18 : x
  2. Step 2: Convert to fraction form
    139,750.48/192,853.20 = 76,087.18/x
  3. Step 3: Cross multiply
    139,750.48x = 192,853.20 × 76,087.18
  4. Step 4: Simplify right side
    139,750.48x = 14,673,656,141.98
  5. Step 5: Solve for x
    x = 14,673,656,141.98/139,750.48
  6. Step 6: Final answer
    x = 104,998.97

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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.