Home / 115,935.27-160,000.80-64,947.18

Finding the Fourth Proportional to 115,935.27, 160,000.80 and 64,947.18

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Solution

The fourth proportional to 115,935.27, 160,000.80 and 64,947.18 is: 89,632.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,935.27 : 160,000.80 = 64,947.18 : x
  2. Step 2: Convert to fraction form
    115,935.27/160,000.80 = 64,947.18/x
  3. Step 3: Cross multiply
    115,935.27x = 160,000.80 × 64,947.18
  4. Step 4: Simplify right side
    115,935.27x = 10,391,600,757.74
  5. Step 5: Solve for x
    x = 10,391,600,757.74/115,935.27
  6. Step 6: Final answer
    x = 89,632.78

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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.