Home / 213,422.20-319,712.10-108,316.60

Finding the Fourth Proportional to 213,422.20, 319,712.10 and 108,316.60

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Solution

The fourth proportional to 213,422.20, 319,712.10 and 108,316.60 is: 162,261.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,422.20 : 319,712.10 = 108,316.60 : x
  2. Step 2: Convert to fraction form
    213,422.20/319,712.10 = 108,316.60/x
  3. Step 3: Cross multiply
    213,422.20x = 319,712.10 × 108,316.60
  4. Step 4: Simplify right side
    213,422.20x = 34,630,127,650.86
  5. Step 5: Solve for x
    x = 34,630,127,650.86/213,422.20
  6. Step 6: Final answer
    x = 162,261.13

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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.