Home / 151,543.47-209,120.33-83,560.88

Finding the Fourth Proportional to 151,543.47, 209,120.33 and 83,560.88

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Solution

The fourth proportional to 151,543.47, 209,120.33 and 83,560.88 is: 115,308.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,543.47 : 209,120.33 = 83,560.88 : x
  2. Step 2: Convert to fraction form
    151,543.47/209,120.33 = 83,560.88/x
  3. Step 3: Cross multiply
    151,543.47x = 209,120.33 × 83,560.88
  4. Step 4: Simplify right side
    151,543.47x = 17,474,277,337.28
  5. Step 5: Solve for x
    x = 17,474,277,337.28/151,543.47
  6. Step 6: Final answer
    x = 115,308.68

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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.