Home / 153,132.52-211,321.06-89,480.04

Finding the Fourth Proportional to 153,132.52, 211,321.06 and 89,480.04

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Solution

The fourth proportional to 153,132.52, 211,321.06 and 89,480.04 is: 123,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,132.52 : 211,321.06 = 89,480.04 : x
  2. Step 2: Convert to fraction form
    153,132.52/211,321.06 = 89,480.04/x
  3. Step 3: Cross multiply
    153,132.52x = 211,321.06 × 89,480.04
  4. Step 4: Simplify right side
    153,132.52x = 18,909,016,901.64
  5. Step 5: Solve for x
    x = 18,909,016,901.64/153,132.52
  6. Step 6: Final answer
    x = 123,481.39

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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.