Home / 125,418.61-188,156.65-54,353.18

Finding the Fourth Proportional to 125,418.61, 188,156.65 and 54,353.18

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Solution

The fourth proportional to 125,418.61, 188,156.65 and 54,353.18 is: 81,542.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,418.61 : 188,156.65 = 54,353.18 : x
  2. Step 2: Convert to fraction form
    125,418.61/188,156.65 = 54,353.18/x
  3. Step 3: Cross multiply
    125,418.61x = 188,156.65 × 54,353.18
  4. Step 4: Simplify right side
    125,418.61x = 10,226,911,188.98
  5. Step 5: Solve for x
    x = 10,226,911,188.98/125,418.61
  6. Step 6: Final answer
    x = 81,542.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.