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Finding the Fourth Proportional to 136,652.80, 204,979.20 and 118,220.80

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Solution

The fourth proportional to 136,652.80, 204,979.20 and 118,220.80 is: 177,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,652.80 : 204,979.20 = 118,220.80 : x
  2. Step 2: Convert to fraction form
    136,652.80/204,979.20 = 118,220.80/x
  3. Step 3: Cross multiply
    136,652.80x = 204,979.20 × 118,220.80
  4. Step 4: Simplify right side
    136,652.80x = 24,232,805,007.36
  5. Step 5: Solve for x
    x = 24,232,805,007.36/136,652.80
  6. Step 6: Final answer
    x = 177,331.20

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1.5x scale

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.