Home / 126,581.54-189,834.03-42,320.07

Finding the Fourth Proportional to 126,581.54, 189,834.03 and 42,320.07

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Solution

The fourth proportional to 126,581.54, 189,834.03 and 42,320.07 is: 63,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,581.54 : 189,834.03 = 42,320.07 : x
  2. Step 2: Convert to fraction form
    126,581.54/189,834.03 = 42,320.07/x
  3. Step 3: Cross multiply
    126,581.54x = 189,834.03 × 42,320.07
  4. Step 4: Simplify right side
    126,581.54x = 8,033,789,437.98
  5. Step 5: Solve for x
    x = 8,033,789,437.98/126,581.54
  6. Step 6: Final answer
    x = 63,467.31

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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.