Home / 123,560.64-170,587.20-81,192.96

Finding the Fourth Proportional to 123,560.64, 170,587.20 and 81,192.96

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Solution

The fourth proportional to 123,560.64, 170,587.20 and 81,192.96 is: 112,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,560.64 : 170,587.20 = 81,192.96 : x
  2. Step 2: Convert to fraction form
    123,560.64/170,587.20 = 81,192.96/x
  3. Step 3: Cross multiply
    123,560.64x = 170,587.20 × 81,192.96
  4. Step 4: Simplify right side
    123,560.64x = 13,850,479,706.11
  5. Step 5: Solve for x
    x = 13,850,479,706.11/123,560.64
  6. Step 6: Final answer
    x = 112,094.59

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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.