Home / 102,500.39-141,450.74-57,177.19

Finding the Fourth Proportional to 102,500.39, 141,450.74 and 57,177.19

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Solution

The fourth proportional to 102,500.39, 141,450.74 and 57,177.19 is: 78,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,500.39 : 141,450.74 = 57,177.19 : x
  2. Step 2: Convert to fraction form
    102,500.39/141,450.74 = 57,177.19/x
  3. Step 3: Cross multiply
    102,500.39x = 141,450.74 × 57,177.19
  4. Step 4: Simplify right side
    102,500.39x = 8,087,755,941.96
  5. Step 5: Solve for x
    x = 8,087,755,941.96/102,500.39
  6. Step 6: Final answer
    x = 78,904.64

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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.