Home / 112,821.68-169,233.96-42,682.16

Finding the Fourth Proportional to 112,821.68, 169,233.96 and 42,682.16

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Solution

The fourth proportional to 112,821.68, 169,233.96 and 42,682.16 is: 64,023.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,821.68 : 169,233.96 = 42,682.16 : x
  2. Step 2: Convert to fraction form
    112,821.68/169,233.96 = 42,682.16/x
  3. Step 3: Cross multiply
    112,821.68x = 169,233.96 × 42,682.16
  4. Step 4: Simplify right side
    112,821.68x = 7,223,270,958.15
  5. Step 5: Solve for x
    x = 7,223,270,958.15/112,821.68
  6. Step 6: Final answer
    x = 64,023.78

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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.