Home / 115,243.29-159,024.11-64,251.23

Finding the Fourth Proportional to 115,243.29, 159,024.11 and 64,251.23

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Solution

The fourth proportional to 115,243.29, 159,024.11 and 64,251.23 is: 88,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,243.29 : 159,024.11 = 64,251.23 : x
  2. Step 2: Convert to fraction form
    115,243.29/159,024.11 = 64,251.23/x
  3. Step 3: Cross multiply
    115,243.29x = 159,024.11 × 64,251.23
  4. Step 4: Simplify right side
    115,243.29x = 10,217,493,550.78
  5. Step 5: Solve for x
    x = 10,217,493,550.78/115,243.29
  6. Step 6: Final answer
    x = 88,660.20

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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.