Home / 161,722.20-242,583.30-138,394.20

Finding the Fourth Proportional to 161,722.20, 242,583.30 and 138,394.20

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Solution

The fourth proportional to 161,722.20, 242,583.30 and 138,394.20 is: 207,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,722.20 : 242,583.30 = 138,394.20 : x
  2. Step 2: Convert to fraction form
    161,722.20/242,583.30 = 138,394.20/x
  3. Step 3: Cross multiply
    161,722.20x = 242,583.30 × 138,394.20
  4. Step 4: Simplify right side
    161,722.20x = 33,572,121,736.86
  5. Step 5: Solve for x
    x = 33,572,121,736.86/161,722.20
  6. Step 6: Final answer
    x = 207,591.30

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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.