Home / 102,505.16-141,454.68-57,187.52

Finding the Fourth Proportional to 102,505.16, 141,454.68 and 57,187.52

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Solution

The fourth proportional to 102,505.16, 141,454.68 and 57,187.52 is: 78,917.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,505.16 : 141,454.68 = 57,187.52 : x
  2. Step 2: Convert to fraction form
    102,505.16/141,454.68 = 57,187.52/x
  3. Step 3: Cross multiply
    102,505.16x = 141,454.68 × 57,187.52
  4. Step 4: Simplify right side
    102,505.16x = 8,089,442,341.59
  5. Step 5: Solve for x
    x = 8,089,442,341.59/102,505.16
  6. Step 6: Final answer
    x = 78,917.42

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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.