Home / 122,217.08-168,531.66-90,452.60

Finding the Fourth Proportional to 122,217.08, 168,531.66 and 90,452.60

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Solution

The fourth proportional to 122,217.08, 168,531.66 and 90,452.60 is: 124,729.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,217.08 : 168,531.66 = 90,452.60 : x
  2. Step 2: Convert to fraction form
    122,217.08/168,531.66 = 90,452.60/x
  3. Step 3: Cross multiply
    122,217.08x = 168,531.66 × 90,452.60
  4. Step 4: Simplify right side
    122,217.08x = 15,244,126,829.32
  5. Step 5: Solve for x
    x = 15,244,126,829.32/122,217.08
  6. Step 6: Final answer
    x = 124,729.92

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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.