Home / 120,422.60-180,581.56-64,250.18

Finding the Fourth Proportional to 120,422.60, 180,581.56 and 64,250.18

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Solution

The fourth proportional to 120,422.60, 180,581.56 and 64,250.18 is: 96,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,422.60 : 180,581.56 = 64,250.18 : x
  2. Step 2: Convert to fraction form
    120,422.60/180,581.56 = 64,250.18/x
  3. Step 3: Cross multiply
    120,422.60x = 180,581.56 × 64,250.18
  4. Step 4: Simplify right side
    120,422.60x = 11,602,397,734.68
  5. Step 5: Solve for x
    x = 11,602,397,734.68/120,422.60
  6. Step 6: Final answer
    x = 96,347.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.