Home / 111,621.04-167,440.13-31,657.61

Finding the Fourth Proportional to 111,621.04, 167,440.13 and 31,657.61

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Solution

The fourth proportional to 111,621.04, 167,440.13 and 31,657.61 is: 47,488.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,621.04 : 167,440.13 = 31,657.61 : x
  2. Step 2: Convert to fraction form
    111,621.04/167,440.13 = 31,657.61/x
  3. Step 3: Cross multiply
    111,621.04x = 167,440.13 × 31,657.61
  4. Step 4: Simplify right side
    111,621.04x = 5,300,754,175.60
  5. Step 5: Solve for x
    x = 5,300,754,175.60/111,621.04
  6. Step 6: Final answer
    x = 47,488.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.