Home / 153,952.20-231,165.90-83,968.20

Finding the Fourth Proportional to 153,952.20, 231,165.90 and 83,968.20

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Solution

The fourth proportional to 153,952.20, 231,165.90 and 83,968.20 is: 126,081.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,952.20 : 231,165.90 = 83,968.20 : x
  2. Step 2: Convert to fraction form
    153,952.20/231,165.90 = 83,968.20/x
  3. Step 3: Cross multiply
    153,952.20x = 231,165.90 × 83,968.20
  4. Step 4: Simplify right side
    153,952.20x = 19,410,584,524.38
  5. Step 5: Solve for x
    x = 19,410,584,524.38/153,952.20
  6. Step 6: Final answer
    x = 126,081.89

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1.5x scale

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.