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Finding the Fourth Proportional to 137,373.60, 206,060.40 and 123,814.20

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Solution

The fourth proportional to 137,373.60, 206,060.40 and 123,814.20 is: 185,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,373.60 : 206,060.40 = 123,814.20 : x
  2. Step 2: Convert to fraction form
    137,373.60/206,060.40 = 123,814.20/x
  3. Step 3: Cross multiply
    137,373.60x = 206,060.40 × 123,814.20
  4. Step 4: Simplify right side
    137,373.60x = 25,513,203,577.68
  5. Step 5: Solve for x
    x = 25,513,203,577.68/137,373.60
  6. Step 6: Final answer
    x = 185,721.30

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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.