Home / 131,110.28-180,931.80-74,532.56

Finding the Fourth Proportional to 131,110.28, 180,931.80 and 74,532.56

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Solution

The fourth proportional to 131,110.28, 180,931.80 and 74,532.56 is: 102,854.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,110.28 : 180,931.80 = 74,532.56 : x
  2. Step 2: Convert to fraction form
    131,110.28/180,931.80 = 74,532.56/x
  3. Step 3: Cross multiply
    131,110.28x = 180,931.80 × 74,532.56
  4. Step 4: Simplify right side
    131,110.28x = 13,485,310,239.41
  5. Step 5: Solve for x
    x = 13,485,310,239.41/131,110.28
  6. Step 6: Final answer
    x = 102,854.71

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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.