Home / 120,987.14-181,517.60-61,864.34

Finding the Fourth Proportional to 120,987.14, 181,517.60 and 61,864.34

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Solution

The fourth proportional to 120,987.14, 181,517.60 and 61,864.34 is: 92,815.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,987.14 : 181,517.60 = 61,864.34 : x
  2. Step 2: Convert to fraction form
    120,987.14/181,517.60 = 61,864.34/x
  3. Step 3: Cross multiply
    120,987.14x = 181,517.60 × 61,864.34
  4. Step 4: Simplify right side
    120,987.14x = 11,229,466,522.38
  5. Step 5: Solve for x
    x = 11,229,466,522.38/120,987.14
  6. Step 6: Final answer
    x = 92,815.37

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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.