Home / 219,661.24-329,024.64-129,606.90

Finding the Fourth Proportional to 219,661.24, 329,024.64 and 129,606.90

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Solution

The fourth proportional to 219,661.24, 329,024.64 and 129,606.90 is: 194,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,661.24 : 329,024.64 = 129,606.90 : x
  2. Step 2: Convert to fraction form
    219,661.24/329,024.64 = 129,606.90/x
  3. Step 3: Cross multiply
    219,661.24x = 329,024.64 × 129,606.90
  4. Step 4: Simplify right side
    219,661.24x = 42,643,863,614.02
  5. Step 5: Solve for x
    x = 42,643,863,614.02/219,661.24
  6. Step 6: Final answer
    x = 194,134.68

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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.