Home / 156,691.14-216,236.31-88,706.34

Finding the Fourth Proportional to 156,691.14, 216,236.31 and 88,706.34

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Solution

The fourth proportional to 156,691.14, 216,236.31 and 88,706.34 is: 122,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,691.14 : 216,236.31 = 88,706.34 : x
  2. Step 2: Convert to fraction form
    156,691.14/216,236.31 = 88,706.34/x
  3. Step 3: Cross multiply
    156,691.14x = 216,236.31 × 88,706.34
  4. Step 4: Simplify right side
    156,691.14x = 19,181,531,635.21
  5. Step 5: Solve for x
    x = 19,181,531,635.21/156,691.14
  6. Step 6: Final answer
    x = 122,416.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.