Home / 141,854.56-212,862.96-71,739.04

Finding the Fourth Proportional to 141,854.56, 212,862.96 and 71,739.04

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Solution

The fourth proportional to 141,854.56, 212,862.96 and 71,739.04 is: 107,649.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,854.56 : 212,862.96 = 71,739.04 : x
  2. Step 2: Convert to fraction form
    141,854.56/212,862.96 = 71,739.04/x
  3. Step 3: Cross multiply
    141,854.56x = 212,862.96 × 71,739.04
  4. Step 4: Simplify right side
    141,854.56x = 15,270,584,401.96
  5. Step 5: Solve for x
    x = 15,270,584,401.96/141,854.56
  6. Step 6: Final answer
    x = 107,649.58

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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.