Home / 135,499.29-186,988.89-75,073.70

Finding the Fourth Proportional to 135,499.29, 186,988.89 and 75,073.70

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Solution

The fourth proportional to 135,499.29, 186,988.89 and 75,073.70 is: 103,601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,499.29 : 186,988.89 = 75,073.70 : x
  2. Step 2: Convert to fraction form
    135,499.29/186,988.89 = 75,073.70/x
  3. Step 3: Cross multiply
    135,499.29x = 186,988.89 × 75,073.70
  4. Step 4: Simplify right side
    135,499.29x = 14,037,947,831.19
  5. Step 5: Solve for x
    x = 14,037,947,831.19/135,499.29
  6. Step 6: Final answer
    x = 103,601.63

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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.