Home / 125,154.03-172,728.96-71,426.73

Finding the Fourth Proportional to 125,154.03, 172,728.96 and 71,426.73

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Solution

The fourth proportional to 125,154.03, 172,728.96 and 71,426.73 is: 98,578.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,154.03 : 172,728.96 = 71,426.73 : x
  2. Step 2: Convert to fraction form
    125,154.03/172,728.96 = 71,426.73/x
  3. Step 3: Cross multiply
    125,154.03x = 172,728.96 × 71,426.73
  4. Step 4: Simplify right side
    125,154.03x = 12,337,464,789.10
  5. Step 5: Solve for x
    x = 12,337,464,789.10/125,154.03
  6. Step 6: Final answer
    x = 98,578.25

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1.5x scale

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.