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Finding the Fourth Proportional to 139,349.84, 192,303.33 and 75,688.70

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Solution

The fourth proportional to 139,349.84, 192,303.33 and 75,688.70 is: 104,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.84 : 192,303.33 = 75,688.70 : x
  2. Step 2: Convert to fraction form
    139,349.84/192,303.33 = 75,688.70/x
  3. Step 3: Cross multiply
    139,349.84x = 192,303.33 × 75,688.70
  4. Step 4: Simplify right side
    139,349.84x = 14,555,189,053.37
  5. Step 5: Solve for x
    x = 14,555,189,053.37/139,349.84
  6. Step 6: Final answer
    x = 104,450.71

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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.