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Finding the Fourth Proportional to 137,445.71, 206,200.82 and 42,671.05

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Solution

The fourth proportional to 137,445.71, 206,200.82 and 42,671.05 is: 64,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,445.71 : 206,200.82 = 42,671.05 : x
  2. Step 2: Convert to fraction form
    137,445.71/206,200.82 = 42,671.05/x
  3. Step 3: Cross multiply
    137,445.71x = 206,200.82 × 42,671.05
  4. Step 4: Simplify right side
    137,445.71x = 8,798,805,091.44
  5. Step 5: Solve for x
    x = 8,798,805,091.44/137,445.71
  6. Step 6: Final answer
    x = 64,016.59

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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.