Home / 112,218.29-154,864.47-61,920.53

Finding the Fourth Proportional to 112,218.29, 154,864.47 and 61,920.53

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Solution

The fourth proportional to 112,218.29, 154,864.47 and 61,920.53 is: 85,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.29 : 154,864.47 = 61,920.53 : x
  2. Step 2: Convert to fraction form
    112,218.29/154,864.47 = 61,920.53/x
  3. Step 3: Cross multiply
    112,218.29x = 154,864.47 × 61,920.53
  4. Step 4: Simplify right side
    112,218.29x = 9,589,289,286.25
  5. Step 5: Solve for x
    x = 9,589,289,286.25/112,218.29
  6. Step 6: Final answer
    x = 85,452.11

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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.