Home / 115,044.28-158,760.78-64,743.32

Finding the Fourth Proportional to 115,044.28, 158,760.78 and 64,743.32

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Solution

The fourth proportional to 115,044.28, 158,760.78 and 64,743.32 is: 89,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,044.28 : 158,760.78 = 64,743.32 : x
  2. Step 2: Convert to fraction form
    115,044.28/158,760.78 = 64,743.32/x
  3. Step 3: Cross multiply
    115,044.28x = 158,760.78 × 64,743.32
  4. Step 4: Simplify right side
    115,044.28x = 10,278,699,982.99
  5. Step 5: Solve for x
    x = 10,278,699,982.99/115,044.28
  6. Step 6: Final answer
    x = 89,345.60

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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.