Home / 102,390.11-141,281.22-57,058.16

Finding the Fourth Proportional to 102,390.11, 141,281.22 and 57,058.16

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Solution

The fourth proportional to 102,390.11, 141,281.22 and 57,058.16 is: 78,730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,390.11 : 141,281.22 = 57,058.16 : x
  2. Step 2: Convert to fraction form
    102,390.11/141,281.22 = 57,058.16/x
  3. Step 3: Cross multiply
    102,390.11x = 141,281.22 × 57,058.16
  4. Step 4: Simplify right side
    102,390.11x = 8,061,246,493.12
  5. Step 5: Solve for x
    x = 8,061,246,493.12/102,390.11
  6. Step 6: Final answer
    x = 78,730.71

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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.