Home / 125,830.20-173,652.84-72,124.14

Finding the Fourth Proportional to 125,830.20, 173,652.84 and 72,124.14

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Solution

The fourth proportional to 125,830.20, 173,652.84 and 72,124.14 is: 99,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,830.20 : 173,652.84 = 72,124.14 : x
  2. Step 2: Convert to fraction form
    125,830.20/173,652.84 = 72,124.14/x
  3. Step 3: Cross multiply
    125,830.20x = 173,652.84 × 72,124.14
  4. Step 4: Simplify right side
    125,830.20x = 12,524,561,743.56
  5. Step 5: Solve for x
    x = 12,524,561,743.56/125,830.20
  6. Step 6: Final answer
    x = 99,535.42

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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.