Home / 101,925.61-140,723.88-66,217.38

Finding the Fourth Proportional to 101,925.61, 140,723.88 and 66,217.38

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Solution

The fourth proportional to 101,925.61, 140,723.88 and 66,217.38 is: 91,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,925.61 : 140,723.88 = 66,217.38 : x
  2. Step 2: Convert to fraction form
    101,925.61/140,723.88 = 66,217.38/x
  3. Step 3: Cross multiply
    101,925.61x = 140,723.88 × 66,217.38
  4. Step 4: Simplify right side
    101,925.61x = 9,318,366,637.03
  5. Step 5: Solve for x
    x = 9,318,366,637.03/101,925.61
  6. Step 6: Final answer
    x = 91,423.21

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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.