Home / 153,856.20-230,784.30-103,117.80

Finding the Fourth Proportional to 153,856.20, 230,784.30 and 103,117.80

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Solution

The fourth proportional to 153,856.20, 230,784.30 and 103,117.80 is: 154,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,856.20 : 230,784.30 = 103,117.80 : x
  2. Step 2: Convert to fraction form
    153,856.20/230,784.30 = 103,117.80/x
  3. Step 3: Cross multiply
    153,856.20x = 230,784.30 × 103,117.80
  4. Step 4: Simplify right side
    153,856.20x = 23,797,969,290.54
  5. Step 5: Solve for x
    x = 23,797,969,290.54/153,856.20
  6. Step 6: Final answer
    x = 154,676.70

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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.