Home / 131,419.60-181,377.84-74,836.24

Finding the Fourth Proportional to 131,419.60, 181,377.84 and 74,836.24

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Solution

The fourth proportional to 131,419.60, 181,377.84 and 74,836.24 is: 103,284.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,419.60 : 181,377.84 = 74,836.24 : x
  2. Step 2: Convert to fraction form
    131,419.60/181,377.84 = 74,836.24/x
  3. Step 3: Cross multiply
    131,419.60x = 181,377.84 × 74,836.24
  4. Step 4: Simplify right side
    131,419.60x = 13,573,635,564.92
  5. Step 5: Solve for x
    x = 13,573,635,564.92/131,419.60
  6. Step 6: Final answer
    x = 103,284.71

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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.