Home / 153,837.20-230,820.60-83,766.80

Finding the Fourth Proportional to 153,837.20, 230,820.60 and 83,766.80

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Solution

The fourth proportional to 153,837.20, 230,820.60 and 83,766.80 is: 125,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,837.20 : 230,820.60 = 83,766.80 : x
  2. Step 2: Convert to fraction form
    153,837.20/230,820.60 = 83,766.80/x
  3. Step 3: Cross multiply
    153,837.20x = 230,820.60 × 83,766.80
  4. Step 4: Simplify right side
    153,837.20x = 19,335,103,036.08
  5. Step 5: Solve for x
    x = 19,335,103,036.08/153,837.20
  6. Step 6: Final answer
    x = 125,685.48

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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.