Home / 102,663.88-141,666.15-57,338.26

Finding the Fourth Proportional to 102,663.88, 141,666.15 and 57,338.26

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Solution

The fourth proportional to 102,663.88, 141,666.15 and 57,338.26 is: 79,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,663.88 : 141,666.15 = 57,338.26 : x
  2. Step 2: Convert to fraction form
    102,663.88/141,666.15 = 57,338.26/x
  3. Step 3: Cross multiply
    102,663.88x = 141,666.15 × 57,338.26
  4. Step 4: Simplify right side
    102,663.88x = 8,122,890,541.90
  5. Step 5: Solve for x
    x = 8,122,890,541.90/102,663.88
  6. Step 6: Final answer
    x = 79,121.21

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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.