Home / 152,379.70-228,569.55-129,829.30

Finding the Fourth Proportional to 152,379.70, 228,569.55 and 129,829.30

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Solution

The fourth proportional to 152,379.70, 228,569.55 and 129,829.30 is: 194,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,379.70 : 228,569.55 = 129,829.30 : x
  2. Step 2: Convert to fraction form
    152,379.70/228,569.55 = 129,829.30/x
  3. Step 3: Cross multiply
    152,379.70x = 228,569.55 × 129,829.30
  4. Step 4: Simplify right side
    152,379.70x = 29,675,024,677.82
  5. Step 5: Solve for x
    x = 29,675,024,677.82/152,379.70
  6. Step 6: Final answer
    x = 194,743.95

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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.