Home / 153,986.20-230,979.30-100,842.10

Finding the Fourth Proportional to 153,986.20, 230,979.30 and 100,842.10

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Solution

The fourth proportional to 153,986.20, 230,979.30 and 100,842.10 is: 151,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,986.20 : 230,979.30 = 100,842.10 : x
  2. Step 2: Convert to fraction form
    153,986.20/230,979.30 = 100,842.10/x
  3. Step 3: Cross multiply
    153,986.20x = 230,979.30 × 100,842.10
  4. Step 4: Simplify right side
    153,986.20x = 23,292,437,668.53
  5. Step 5: Solve for x
    x = 23,292,437,668.53/153,986.20
  6. Step 6: Final answer
    x = 151,263.15

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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.