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Finding the Fourth Proportional to 169,519.04, 254,350.32 and 85,234.88

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Solution

The fourth proportional to 169,519.04, 254,350.32 and 85,234.88 is: 127,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,519.04 : 254,350.32 = 85,234.88 : x
  2. Step 2: Convert to fraction form
    169,519.04/254,350.32 = 85,234.88/x
  3. Step 3: Cross multiply
    169,519.04x = 254,350.32 × 85,234.88
  4. Step 4: Simplify right side
    169,519.04x = 21,679,519,003.16
  5. Step 5: Solve for x
    x = 21,679,519,003.16/169,519.04
  6. Step 6: Final answer
    x = 127,888.40

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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.