Home / 125,119.22-172,662.57-71,402.85

Finding the Fourth Proportional to 125,119.22, 172,662.57 and 71,402.85

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Solution

The fourth proportional to 125,119.22, 172,662.57 and 71,402.85 is: 98,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,119.22 : 172,662.57 = 71,402.85 : x
  2. Step 2: Convert to fraction form
    125,119.22/172,662.57 = 71,402.85/x
  3. Step 3: Cross multiply
    125,119.22x = 172,662.57 × 71,402.85
  4. Step 4: Simplify right side
    125,119.22x = 12,328,599,586.32
  5. Step 5: Solve for x
    x = 12,328,599,586.32/125,119.22
  6. Step 6: Final answer
    x = 98,534.82

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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.