Home / 140,526.20-193,989.49-89,607.38

Finding the Fourth Proportional to 140,526.20, 193,989.49 and 89,607.38

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Solution

The fourth proportional to 140,526.20, 193,989.49 and 89,607.38 is: 123,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,526.20 : 193,989.49 = 89,607.38 : x
  2. Step 2: Convert to fraction form
    140,526.20/193,989.49 = 89,607.38/x
  3. Step 3: Cross multiply
    140,526.20x = 193,989.49 × 89,607.38
  4. Step 4: Simplify right side
    140,526.20x = 17,382,888,752.47
  5. Step 5: Solve for x
    x = 17,382,888,752.47/140,526.20
  6. Step 6: Final answer
    x = 123,698.56

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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.