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Finding the Fourth Proportional to 163,085.70, 244,336.95 and 138,008.10

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Solution

The fourth proportional to 163,085.70, 244,336.95 and 138,008.10 is: 206,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,085.70 : 244,336.95 = 138,008.10 : x
  2. Step 2: Convert to fraction form
    163,085.70/244,336.95 = 138,008.10/x
  3. Step 3: Cross multiply
    163,085.70x = 244,336.95 × 138,008.10
  4. Step 4: Simplify right side
    163,085.70x = 33,720,478,229.30
  5. Step 5: Solve for x
    x = 33,720,478,229.30/163,085.70
  6. Step 6: Final answer
    x = 206,765.39

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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.