Home / 102,540.02-141,505.07-57,215.26

Finding the Fourth Proportional to 102,540.02, 141,505.07 and 57,215.26

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Solution

The fourth proportional to 102,540.02, 141,505.07 and 57,215.26 is: 78,956.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,540.02 : 141,505.07 = 57,215.26 : x
  2. Step 2: Convert to fraction form
    102,540.02/141,505.07 = 57,215.26/x
  3. Step 3: Cross multiply
    102,540.02x = 141,505.07 × 57,215.26
  4. Step 4: Simplify right side
    102,540.02x = 8,096,248,731.53
  5. Step 5: Solve for x
    x = 8,096,248,731.53/102,540.02
  6. Step 6: Final answer
    x = 78,956.96

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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.