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Finding the Fourth Proportional to 169,904.32, 254,862.96 and 86,701.12

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Solution

The fourth proportional to 169,904.32, 254,862.96 and 86,701.12 is: 130,054.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,904.32 : 254,862.96 = 86,701.12 : x
  2. Step 2: Convert to fraction form
    169,904.32/254,862.96 = 86,701.12/x
  3. Step 3: Cross multiply
    169,904.32x = 254,862.96 × 86,701.12
  4. Step 4: Simplify right side
    169,904.32x = 22,096,904,078.52
  5. Step 5: Solve for x
    x = 22,096,904,078.52/169,904.32
  6. Step 6: Final answer
    x = 130,054.99

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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.