Home / 165,020.52-247,491.10-76,188.68

Finding the Fourth Proportional to 165,020.52, 247,491.10 and 76,188.68

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Solution

The fourth proportional to 165,020.52, 247,491.10 and 76,188.68 is: 114,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,020.52 : 247,491.10 = 76,188.68 : x
  2. Step 2: Convert to fraction form
    165,020.52/247,491.10 = 76,188.68/x
  3. Step 3: Cross multiply
    165,020.52x = 247,491.10 × 76,188.68
  4. Step 4: Simplify right side
    165,020.52x = 18,856,020,220.75
  5. Step 5: Solve for x
    x = 18,856,020,220.75/165,020.52
  6. Step 6: Final answer
    x = 114,264.70

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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.