Home / 160,777.20-221,854.20-89,139.12

Finding the Fourth Proportional to 160,777.20, 221,854.20 and 89,139.12

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Solution

The fourth proportional to 160,777.20, 221,854.20 and 89,139.12 is: 123,001.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,777.20 : 221,854.20 = 89,139.12 : x
  2. Step 2: Convert to fraction form
    160,777.20/221,854.20 = 89,139.12/x
  3. Step 3: Cross multiply
    160,777.20x = 221,854.20 × 89,139.12
  4. Step 4: Simplify right side
    160,777.20x = 19,775,888,156.30
  5. Step 5: Solve for x
    x = 19,775,888,156.30/160,777.20
  6. Step 6: Final answer
    x = 123,001.82

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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.