Home / 125,018.28-172,524.96-71,302.80

Finding the Fourth Proportional to 125,018.28, 172,524.96 and 71,302.80

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Solution

The fourth proportional to 125,018.28, 172,524.96 and 71,302.80 is: 98,397.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,018.28 : 172,524.96 = 71,302.80 : x
  2. Step 2: Convert to fraction form
    125,018.28/172,524.96 = 71,302.80/x
  3. Step 3: Cross multiply
    125,018.28x = 172,524.96 × 71,302.80
  4. Step 4: Simplify right side
    125,018.28x = 12,301,512,717.89
  5. Step 5: Solve for x
    x = 12,301,512,717.89/125,018.28
  6. Step 6: Final answer
    x = 98,397.71

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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.