Home / 151,515.28-209,092.56-83,534.76

Finding the Fourth Proportional to 151,515.28, 209,092.56 and 83,534.76

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Solution

The fourth proportional to 151,515.28, 209,092.56 and 83,534.76 is: 115,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,515.28 : 209,092.56 = 83,534.76 : x
  2. Step 2: Convert to fraction form
    151,515.28/209,092.56 = 83,534.76/x
  3. Step 3: Cross multiply
    151,515.28x = 209,092.56 × 83,534.76
  4. Step 4: Simplify right side
    151,515.28x = 17,466,496,817.39
  5. Step 5: Solve for x
    x = 17,466,496,817.39/151,515.28
  6. Step 6: Final answer
    x = 115,278.78

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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.