Home / 115,310.14-159,121.92-64,328.20

Finding the Fourth Proportional to 115,310.14, 159,121.92 and 64,328.20

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Solution

The fourth proportional to 115,310.14, 159,121.92 and 64,328.20 is: 88,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,310.14 : 159,121.92 = 64,328.20 : x
  2. Step 2: Convert to fraction form
    115,310.14/159,121.92 = 64,328.20/x
  3. Step 3: Cross multiply
    115,310.14x = 159,121.92 × 64,328.20
  4. Step 4: Simplify right side
    115,310.14x = 10,236,026,694.14
  5. Step 5: Solve for x
    x = 10,236,026,694.14/115,310.14
  6. Step 6: Final answer
    x = 88,769.53

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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.