Home / 125,217.22-172,805.34-71,506.54

Finding the Fourth Proportional to 125,217.22, 172,805.34 and 71,506.54

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Solution

The fourth proportional to 125,217.22, 172,805.34 and 71,506.54 is: 98,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,217.22 : 172,805.34 = 71,506.54 : x
  2. Step 2: Convert to fraction form
    125,217.22/172,805.34 = 71,506.54/x
  3. Step 3: Cross multiply
    125,217.22x = 172,805.34 × 71,506.54
  4. Step 4: Simplify right side
    125,217.22x = 12,356,711,956.92
  5. Step 5: Solve for x
    x = 12,356,711,956.92/125,217.22
  6. Step 6: Final answer
    x = 98,682.21

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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.