Home / 208,189.28-287,301.24-112,696.76

Finding the Fourth Proportional to 208,189.28, 287,301.24 and 112,696.76

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Solution

The fourth proportional to 208,189.28, 287,301.24 and 112,696.76 is: 155,521.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,189.28 : 287,301.24 = 112,696.76 : x
  2. Step 2: Convert to fraction form
    208,189.28/287,301.24 = 112,696.76/x
  3. Step 3: Cross multiply
    208,189.28x = 287,301.24 × 112,696.76
  4. Step 4: Simplify right side
    208,189.28x = 32,377,918,891.98
  5. Step 5: Solve for x
    x = 32,377,918,891.98/208,189.28
  6. Step 6: Final answer
    x = 155,521.55

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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.