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Finding the Fourth Proportional to 165,136.80, 247,705.20 and 59,959.20

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Solution

The fourth proportional to 165,136.80, 247,705.20 and 59,959.20 is: 89,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,136.80 : 247,705.20 = 59,959.20 : x
  2. Step 2: Convert to fraction form
    165,136.80/247,705.20 = 59,959.20/x
  3. Step 3: Cross multiply
    165,136.80x = 247,705.20 × 59,959.20
  4. Step 4: Simplify right side
    165,136.80x = 14,852,205,627.84
  5. Step 5: Solve for x
    x = 14,852,205,627.84/165,136.80
  6. Step 6: Final answer
    x = 89,938.80

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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.