Home / 219,658.24-329,020.14-129,603.90

Finding the Fourth Proportional to 219,658.24, 329,020.14 and 129,603.90

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Solution

The fourth proportional to 219,658.24, 329,020.14 and 129,603.90 is: 194,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,658.24 : 329,020.14 = 129,603.90 : x
  2. Step 2: Convert to fraction form
    219,658.24/329,020.14 = 129,603.90/x
  3. Step 3: Cross multiply
    219,658.24x = 329,020.14 × 129,603.90
  4. Step 4: Simplify right side
    219,658.24x = 42,642,292,644.88
  5. Step 5: Solve for x
    x = 42,642,292,644.88/219,658.24
  6. Step 6: Final answer
    x = 194,130.18

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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.