Home / 230,829.20-318,542.98-128,848.76

Finding the Fourth Proportional to 230,829.20, 318,542.98 and 128,848.76

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Solution

The fourth proportional to 230,829.20, 318,542.98 and 128,848.76 is: 177,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,829.20 : 318,542.98 = 128,848.76 : x
  2. Step 2: Convert to fraction form
    230,829.20/318,542.98 = 128,848.76/x
  3. Step 3: Cross multiply
    230,829.20x = 318,542.98 × 128,848.76
  4. Step 4: Simplify right side
    230,829.20x = 41,043,867,979.70
  5. Step 5: Solve for x
    x = 41,043,867,979.70/230,829.20
  6. Step 6: Final answer
    x = 177,810.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.