Home / 126,230.13-189,378.14-47,345.85

Finding the Fourth Proportional to 126,230.13, 189,378.14 and 47,345.85

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Solution

The fourth proportional to 126,230.13, 189,378.14 and 47,345.85 is: 71,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,230.13 : 189,378.14 = 47,345.85 : x
  2. Step 2: Convert to fraction form
    126,230.13/189,378.14 = 47,345.85/x
  3. Step 3: Cross multiply
    126,230.13x = 189,378.14 × 47,345.85
  4. Step 4: Simplify right side
    126,230.13x = 8,966,268,772.99
  5. Step 5: Solve for x
    x = 8,966,268,772.99/126,230.13
  6. Step 6: Final answer
    x = 71,031.13

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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.