Home / 126,423.87-189,663.50-47,538.10

Finding the Fourth Proportional to 126,423.87, 189,663.50 and 47,538.10

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Solution

The fourth proportional to 126,423.87, 189,663.50 and 47,538.10 is: 71,317.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,423.87 : 189,663.50 = 47,538.10 : x
  2. Step 2: Convert to fraction form
    126,423.87/189,663.50 = 47,538.10/x
  3. Step 3: Cross multiply
    126,423.87x = 189,663.50 × 47,538.10
  4. Step 4: Simplify right side
    126,423.87x = 9,016,242,118.15
  5. Step 5: Solve for x
    x = 9,016,242,118.15/126,423.87
  6. Step 6: Final answer
    x = 71,317.56

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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.