Home / 123,872.15-185,826.69-57,319.04

Finding the Fourth Proportional to 123,872.15, 185,826.69 and 57,319.04

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Solution

The fourth proportional to 123,872.15, 185,826.69 and 57,319.04 is: 85,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,872.15 : 185,826.69 = 57,319.04 : x
  2. Step 2: Convert to fraction form
    123,872.15/185,826.69 = 57,319.04/x
  3. Step 3: Cross multiply
    123,872.15x = 185,826.69 × 57,319.04
  4. Step 4: Simplify right side
    123,872.15x = 10,651,407,941.74
  5. Step 5: Solve for x
    x = 10,651,407,941.74/123,872.15
  6. Step 6: Final answer
    x = 85,987.11

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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.