Home / 112,119.93-154,718.15-61,819.29

Finding the Fourth Proportional to 112,119.93, 154,718.15 and 61,819.29

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Solution

The fourth proportional to 112,119.93, 154,718.15 and 61,819.29 is: 85,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,119.93 : 154,718.15 = 61,819.29 : x
  2. Step 2: Convert to fraction form
    112,119.93/154,718.15 = 61,819.29/x
  3. Step 3: Cross multiply
    112,119.93x = 154,718.15 × 61,819.29
  4. Step 4: Simplify right side
    112,119.93x = 9,564,565,874.02
  5. Step 5: Solve for x
    x = 9,564,565,874.02/112,119.93
  6. Step 6: Final answer
    x = 85,306.56

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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.