Home / 102,567.87-141,432.08-66,691.35

Finding the Fourth Proportional to 102,567.87, 141,432.08 and 66,691.35

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Solution

The fourth proportional to 102,567.87, 141,432.08 and 66,691.35 is: 91,961.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,567.87 : 141,432.08 = 66,691.35 : x
  2. Step 2: Convert to fraction form
    102,567.87/141,432.08 = 66,691.35/x
  3. Step 3: Cross multiply
    102,567.87x = 141,432.08 × 66,691.35
  4. Step 4: Simplify right side
    102,567.87x = 9,432,296,015.05
  5. Step 5: Solve for x
    x = 9,432,296,015.05/102,567.87
  6. Step 6: Final answer
    x = 91,961.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.