Home / 125,221.62-172,820.07-71,514.30

Finding the Fourth Proportional to 125,221.62, 172,820.07 and 71,514.30

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Solution

The fourth proportional to 125,221.62, 172,820.07 and 71,514.30 is: 98,697.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,221.62 : 172,820.07 = 71,514.30 : x
  2. Step 2: Convert to fraction form
    125,221.62/172,820.07 = 71,514.30/x
  3. Step 3: Cross multiply
    125,221.62x = 172,820.07 × 71,514.30
  4. Step 4: Simplify right side
    125,221.62x = 12,359,106,332.00
  5. Step 5: Solve for x
    x = 12,359,106,332.00/125,221.62
  6. Step 6: Final answer
    x = 98,697.86

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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.