Home / 119,729.71-165,228.15-66,016.86

Finding the Fourth Proportional to 119,729.71, 165,228.15 and 66,016.86

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Solution

The fourth proportional to 119,729.71, 165,228.15 and 66,016.86 is: 91,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,729.71 : 165,228.15 = 66,016.86 : x
  2. Step 2: Convert to fraction form
    119,729.71/165,228.15 = 66,016.86/x
  3. Step 3: Cross multiply
    119,729.71x = 165,228.15 × 66,016.86
  4. Step 4: Simplify right side
    119,729.71x = 10,907,843,646.61
  5. Step 5: Solve for x
    x = 10,907,843,646.61/119,729.71
  6. Step 6: Final answer
    x = 91,103.90

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1.5x scale

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.