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Finding the Fourth Proportional to 126,000.80, 188,612.40 and 73,253.60

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Solution

The fourth proportional to 126,000.80, 188,612.40 and 73,253.60 is: 109,654.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,000.80 : 188,612.40 = 73,253.60 : x
  2. Step 2: Convert to fraction form
    126,000.80/188,612.40 = 73,253.60/x
  3. Step 3: Cross multiply
    126,000.80x = 188,612.40 × 73,253.60
  4. Step 4: Simplify right side
    126,000.80x = 13,816,537,304.64
  5. Step 5: Solve for x
    x = 13,816,537,304.64/126,000.80
  6. Step 6: Final answer
    x = 109,654.36

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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.