Home / 126,501.28-189,687.45-42,231.17

Finding the Fourth Proportional to 126,501.28, 189,687.45 and 42,231.17

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Solution

The fourth proportional to 126,501.28, 189,687.45 and 42,231.17 is: 63,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,501.28 : 189,687.45 = 42,231.17 : x
  2. Step 2: Convert to fraction form
    126,501.28/189,687.45 = 42,231.17/x
  3. Step 3: Cross multiply
    126,501.28x = 189,687.45 × 42,231.17
  4. Step 4: Simplify right side
    126,501.28x = 8,010,723,580.40
  5. Step 5: Solve for x
    x = 8,010,723,580.40/126,501.28
  6. Step 6: Final answer
    x = 63,325.24

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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.