Home / 123,419.28-185,051.16-104,705.85

Finding the Fourth Proportional to 123,419.28, 185,051.16 and 104,705.85

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Solution

The fourth proportional to 123,419.28, 185,051.16 and 104,705.85 is: 156,992.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,419.28 : 185,051.16 = 104,705.85 : x
  2. Step 2: Convert to fraction form
    123,419.28/185,051.16 = 104,705.85/x
  3. Step 3: Cross multiply
    123,419.28x = 185,051.16 × 104,705.85
  4. Step 4: Simplify right side
    123,419.28x = 19,375,939,001.29
  5. Step 5: Solve for x
    x = 19,375,939,001.29/123,419.28
  6. Step 6: Final answer
    x = 156,992.81

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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.