Home / 219,949.56-329,920.29-70,188.66

Finding the Fourth Proportional to 219,949.56, 329,920.29 and 70,188.66

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Solution

The fourth proportional to 219,949.56, 329,920.29 and 70,188.66 is: 105,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,949.56 : 329,920.29 = 70,188.66 : x
  2. Step 2: Convert to fraction form
    219,949.56/329,920.29 = 70,188.66/x
  3. Step 3: Cross multiply
    219,949.56x = 329,920.29 × 70,188.66
  4. Step 4: Simplify right side
    219,949.56x = 23,156,663,061.91
  5. Step 5: Solve for x
    x = 23,156,663,061.91/219,949.56
  6. Step 6: Final answer
    x = 105,281.70

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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.