Home / 131,098.19-180,812.71-89,729.70

Finding the Fourth Proportional to 131,098.19, 180,812.71 and 89,729.70

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Solution

The fourth proportional to 131,098.19, 180,812.71 and 89,729.70 is: 123,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,098.19 : 180,812.71 = 89,729.70 : x
  2. Step 2: Convert to fraction form
    131,098.19/180,812.71 = 89,729.70/x
  3. Step 3: Cross multiply
    131,098.19x = 180,812.71 × 89,729.70
  4. Step 4: Simplify right side
    131,098.19x = 16,224,269,320.42
  5. Step 5: Solve for x
    x = 16,224,269,320.42/131,098.19
  6. Step 6: Final answer
    x = 123,756.63

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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.