Home / 105,549.20-158,189.40-43,149.20

Finding the Fourth Proportional to 105,549.20, 158,189.40 and 43,149.20

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Solution

The fourth proportional to 105,549.20, 158,189.40 and 43,149.20 is: 64,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,549.20 : 158,189.40 = 43,149.20 : x
  2. Step 2: Convert to fraction form
    105,549.20/158,189.40 = 43,149.20/x
  3. Step 3: Cross multiply
    105,549.20x = 158,189.40 × 43,149.20
  4. Step 4: Simplify right side
    105,549.20x = 6,825,746,058.48
  5. Step 5: Solve for x
    x = 6,825,746,058.48/105,549.20
  6. Step 6: Final answer
    x = 64,668.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.