Home / 109,000.30-163,562.56-42,431.80

Finding the Fourth Proportional to 109,000.30, 163,562.56 and 42,431.80

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Solution

The fourth proportional to 109,000.30, 163,562.56 and 42,431.80 is: 63,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,000.30 : 163,562.56 = 42,431.80 : x
  2. Step 2: Convert to fraction form
    109,000.30/163,562.56 = 42,431.80/x
  3. Step 3: Cross multiply
    109,000.30x = 163,562.56 × 42,431.80
  4. Step 4: Simplify right side
    109,000.30x = 6,940,253,833.41
  5. Step 5: Solve for x
    x = 6,940,253,833.41/109,000.30
  6. Step 6: Final answer
    x = 63,671.88

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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.