Home / 112,170.03-154,793.91-61,869.03

Finding the Fourth Proportional to 112,170.03, 154,793.91 and 61,869.03

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Solution

The fourth proportional to 112,170.03, 154,793.91 and 61,869.03 is: 85,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,170.03 : 154,793.91 = 61,869.03 : x
  2. Step 2: Convert to fraction form
    112,170.03/154,793.91 = 61,869.03/x
  3. Step 3: Cross multiply
    112,170.03x = 154,793.91 × 61,869.03
  4. Step 4: Simplify right side
    112,170.03x = 9,576,949,061.61
  5. Step 5: Solve for x
    x = 9,576,949,061.61/112,170.03
  6. Step 6: Final answer
    x = 85,378.86

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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.