Home / 125,342.22-172,996.90-71,622.20

Finding the Fourth Proportional to 125,342.22, 172,996.90 and 71,622.20

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Solution

The fourth proportional to 125,342.22, 172,996.90 and 71,622.20 is: 98,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,342.22 : 172,996.90 = 71,622.20 : x
  2. Step 2: Convert to fraction form
    125,342.22/172,996.90 = 71,622.20/x
  3. Step 3: Cross multiply
    125,342.22x = 172,996.90 × 71,622.20
  4. Step 4: Simplify right side
    125,342.22x = 12,390,418,571.18
  5. Step 5: Solve for x
    x = 12,390,418,571.18/125,342.22
  6. Step 6: Final answer
    x = 98,852.71

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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.