Home / 112,218.41-154,864.65-61,920.65

Finding the Fourth Proportional to 112,218.41, 154,864.65 and 61,920.65

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Solution

The fourth proportional to 112,218.41, 154,864.65 and 61,920.65 is: 85,452.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.41 : 154,864.65 = 61,920.65 : x
  2. Step 2: Convert to fraction form
    112,218.41/154,864.65 = 61,920.65/x
  3. Step 3: Cross multiply
    112,218.41x = 154,864.65 × 61,920.65
  4. Step 4: Simplify right side
    112,218.41x = 9,589,319,480.42
  5. Step 5: Solve for x
    x = 9,589,319,480.42/112,218.41
  6. Step 6: Final answer
    x = 85,452.28

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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.