Home / 153,047.20-229,570.80-90,839.20

Finding the Fourth Proportional to 153,047.20, 229,570.80 and 90,839.20

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Solution

The fourth proportional to 153,047.20, 229,570.80 and 90,839.20 is: 136,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,047.20 : 229,570.80 = 90,839.20 : x
  2. Step 2: Convert to fraction form
    153,047.20/229,570.80 = 90,839.20/x
  3. Step 3: Cross multiply
    153,047.20x = 229,570.80 × 90,839.20
  4. Step 4: Simplify right side
    153,047.20x = 20,854,027,815.36
  5. Step 5: Solve for x
    x = 20,854,027,815.36/153,047.20
  6. Step 6: Final answer
    x = 136,258.80

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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.