Home / 102,431.56-141,350.76-57,114.48

Finding the Fourth Proportional to 102,431.56, 141,350.76 and 57,114.48

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Solution

The fourth proportional to 102,431.56, 141,350.76 and 57,114.48 is: 78,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,431.56 : 141,350.76 = 57,114.48 : x
  2. Step 2: Convert to fraction form
    102,431.56/141,350.76 = 57,114.48/x
  3. Step 3: Cross multiply
    102,431.56x = 141,350.76 × 57,114.48
  4. Step 4: Simplify right side
    102,431.56x = 8,073,175,155.00
  5. Step 5: Solve for x
    x = 8,073,175,155.00/102,431.56
  6. Step 6: Final answer
    x = 78,815.31

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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.