Home / 102,477.26-141,418.32-57,155.30

Finding the Fourth Proportional to 102,477.26, 141,418.32 and 57,155.30

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Solution

The fourth proportional to 102,477.26, 141,418.32 and 57,155.30 is: 78,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,477.26 : 141,418.32 = 57,155.30 : x
  2. Step 2: Convert to fraction form
    102,477.26/141,418.32 = 57,155.30/x
  3. Step 3: Cross multiply
    102,477.26x = 141,418.32 × 57,155.30
  4. Step 4: Simplify right side
    102,477.26x = 8,082,806,505.10
  5. Step 5: Solve for x
    x = 8,082,806,505.10/102,477.26
  6. Step 6: Final answer
    x = 78,874.15

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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.