Home / 198,711.68-274,220.76-112,686.92

Finding the Fourth Proportional to 198,711.68, 274,220.76 and 112,686.92

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Solution

The fourth proportional to 198,711.68, 274,220.76 and 112,686.92 is: 155,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,711.68 : 274,220.76 = 112,686.92 : x
  2. Step 2: Convert to fraction form
    198,711.68/274,220.76 = 112,686.92/x
  3. Step 3: Cross multiply
    198,711.68x = 274,220.76 × 112,686.92
  4. Step 4: Simplify right side
    198,711.68x = 30,901,092,844.46
  5. Step 5: Solve for x
    x = 30,901,092,844.46/198,711.68
  6. Step 6: Final answer
    x = 155,507.18

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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.