Home / 115,933.20-159,996.60-64,957.92

Finding the Fourth Proportional to 115,933.20, 159,996.60 and 64,957.92

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Solution

The fourth proportional to 115,933.20, 159,996.60 and 64,957.92 is: 89,646.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,933.20 : 159,996.60 = 64,957.92 : x
  2. Step 2: Convert to fraction form
    115,933.20/159,996.60 = 64,957.92/x
  3. Step 3: Cross multiply
    115,933.20x = 159,996.60 × 64,957.92
  4. Step 4: Simplify right side
    115,933.20x = 10,393,046,343.07
  5. Step 5: Solve for x
    x = 10,393,046,343.07/115,933.20
  6. Step 6: Final answer
    x = 89,646.85

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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.