Home / 107,876.16-161,766.72-57,941.28

Finding the Fourth Proportional to 107,876.16, 161,766.72 and 57,941.28

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Solution

The fourth proportional to 107,876.16, 161,766.72 and 57,941.28 is: 86,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,876.16 : 161,766.72 = 57,941.28 : x
  2. Step 2: Convert to fraction form
    107,876.16/161,766.72 = 57,941.28/x
  3. Step 3: Cross multiply
    107,876.16x = 161,766.72 × 57,941.28
  4. Step 4: Simplify right side
    107,876.16x = 9,372,970,818.20
  5. Step 5: Solve for x
    x = 9,372,970,818.20/107,876.16
  6. Step 6: Final answer
    x = 86,886.40

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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.