Home / 102,578.31-141,565.19-57,265.20

Finding the Fourth Proportional to 102,578.31, 141,565.19 and 57,265.20

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Solution

The fourth proportional to 102,578.31, 141,565.19 and 57,265.20 is: 79,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,578.31 : 141,565.19 = 57,265.20 : x
  2. Step 2: Convert to fraction form
    102,578.31/141,565.19 = 57,265.20/x
  3. Step 3: Cross multiply
    102,578.31x = 141,565.19 × 57,265.20
  4. Step 4: Simplify right side
    102,578.31x = 8,106,758,632.06
  5. Step 5: Solve for x
    x = 8,106,758,632.06/102,578.31
  6. Step 6: Final answer
    x = 79,029.95

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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.