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Finding the Fourth Proportional to 161,832.89, 223,425.14 and 143,878.28

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Solution

The fourth proportional to 161,832.89, 223,425.14 and 143,878.28 is: 198,637.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,832.89 : 223,425.14 = 143,878.28 : x
  2. Step 2: Convert to fraction form
    161,832.89/223,425.14 = 143,878.28/x
  3. Step 3: Cross multiply
    161,832.89x = 223,425.14 × 143,878.28
  4. Step 4: Simplify right side
    161,832.89x = 32,146,023,015.44
  5. Step 5: Solve for x
    x = 32,146,023,015.44/161,832.89
  6. Step 6: Final answer
    x = 198,637.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.