Home / 123,254.60-170,049.14-100,554.04

Finding the Fourth Proportional to 123,254.60, 170,049.14 and 100,554.04

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Solution

The fourth proportional to 123,254.60, 170,049.14 and 100,554.04 is: 138,730.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,254.60 : 170,049.14 = 100,554.04 : x
  2. Step 2: Convert to fraction form
    123,254.60/170,049.14 = 100,554.04/x
  3. Step 3: Cross multiply
    123,254.60x = 170,049.14 × 100,554.04
  4. Step 4: Simplify right side
    123,254.60x = 17,099,128,025.53
  5. Step 5: Solve for x
    x = 17,099,128,025.53/123,254.60
  6. Step 6: Final answer
    x = 138,730.14

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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.