Home / 125,173.20-172,700.82-71,455.08

Finding the Fourth Proportional to 125,173.20, 172,700.82 and 71,455.08

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Solution

The fourth proportional to 125,173.20, 172,700.82 and 71,455.08 is: 98,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,173.20 : 172,700.82 = 71,455.08 : x
  2. Step 2: Convert to fraction form
    125,173.20/172,700.82 = 71,455.08/x
  3. Step 3: Cross multiply
    125,173.20x = 172,700.82 × 71,455.08
  4. Step 4: Simplify right side
    125,173.20x = 12,340,350,909.17
  5. Step 5: Solve for x
    x = 12,340,350,909.17/125,173.20
  6. Step 6: Final answer
    x = 98,586.21

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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.