Home / 107,211.25-147,854.68-66,928.74

Finding the Fourth Proportional to 107,211.25, 147,854.68 and 66,928.74

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Solution

The fourth proportional to 107,211.25, 147,854.68 and 66,928.74 is: 92,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,211.25 : 147,854.68 = 66,928.74 : x
  2. Step 2: Convert to fraction form
    107,211.25/147,854.68 = 66,928.74/x
  3. Step 3: Cross multiply
    107,211.25x = 147,854.68 × 66,928.74
  4. Step 4: Simplify right side
    107,211.25x = 9,895,727,435.50
  5. Step 5: Solve for x
    x = 9,895,727,435.50/107,211.25
  6. Step 6: Final answer
    x = 92,301.20

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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.