Home / 126,670.60-189,887.10-47,837.80

Finding the Fourth Proportional to 126,670.60, 189,887.10 and 47,837.80

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Solution

The fourth proportional to 126,670.60, 189,887.10 and 47,837.80 is: 71,711.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,670.60 : 189,887.10 = 47,837.80 : x
  2. Step 2: Convert to fraction form
    126,670.60/189,887.10 = 47,837.80/x
  3. Step 3: Cross multiply
    126,670.60x = 189,887.10 × 47,837.80
  4. Step 4: Simplify right side
    126,670.60x = 9,083,781,112.38
  5. Step 5: Solve for x
    x = 9,083,781,112.38/126,670.60
  6. Step 6: Final answer
    x = 71,711.83

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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.