Home / 119,729.64-165,236.76-66,025.20

Finding the Fourth Proportional to 119,729.64, 165,236.76 and 66,025.20

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Solution

The fourth proportional to 119,729.64, 165,236.76 and 66,025.20 is: 91,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,729.64 : 165,236.76 = 66,025.20 : x
  2. Step 2: Convert to fraction form
    119,729.64/165,236.76 = 66,025.20/x
  3. Step 3: Cross multiply
    119,729.64x = 165,236.76 × 66,025.20
  4. Step 4: Simplify right side
    119,729.64x = 10,909,790,126.35
  5. Step 5: Solve for x
    x = 10,909,790,126.35/119,729.64
  6. Step 6: Final answer
    x = 91,120.21

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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.