Home / 126,192.40-189,058.20-102,691.60

Finding the Fourth Proportional to 126,192.40, 189,058.20 and 102,691.60

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Solution

The fourth proportional to 126,192.40, 189,058.20 and 102,691.60 is: 153,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,192.40 : 189,058.20 = 102,691.60 : x
  2. Step 2: Convert to fraction form
    126,192.40/189,058.20 = 102,691.60/x
  3. Step 3: Cross multiply
    126,192.40x = 189,058.20 × 102,691.60
  4. Step 4: Simplify right side
    126,192.40x = 19,414,689,051.12
  5. Step 5: Solve for x
    x = 19,414,689,051.12/126,192.40
  6. Step 6: Final answer
    x = 153,849.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.