Home / 125,270.72-172,872.96-67,909.84

Finding the Fourth Proportional to 125,270.72, 172,872.96 and 67,909.84

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Solution

The fourth proportional to 125,270.72, 172,872.96 and 67,909.84 is: 93,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,270.72 : 172,872.96 = 67,909.84 : x
  2. Step 2: Convert to fraction form
    125,270.72/172,872.96 = 67,909.84/x
  3. Step 3: Cross multiply
    125,270.72x = 172,872.96 × 67,909.84
  4. Step 4: Simplify right side
    125,270.72x = 11,739,775,053.93
  5. Step 5: Solve for x
    x = 11,739,775,053.93/125,270.72
  6. Step 6: Final answer
    x = 93,715.24

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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.