Home / 112,818.35-155,691.14-61,835.96

Finding the Fourth Proportional to 112,818.35, 155,691.14 and 61,835.96

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Solution

The fourth proportional to 112,818.35, 155,691.14 and 61,835.96 is: 85,334.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,818.35 : 155,691.14 = 61,835.96 : x
  2. Step 2: Convert to fraction form
    112,818.35/155,691.14 = 61,835.96/x
  3. Step 3: Cross multiply
    112,818.35x = 155,691.14 × 61,835.96
  4. Step 4: Simplify right side
    112,818.35x = 9,627,310,017.76
  5. Step 5: Solve for x
    x = 9,627,310,017.76/112,818.35
  6. Step 6: Final answer
    x = 85,334.61

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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.