Home / 140,718.60-211,121.10-111,148.20

Finding the Fourth Proportional to 140,718.60, 211,121.10 and 111,148.20

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Solution

The fourth proportional to 140,718.60, 211,121.10 and 111,148.20 is: 166,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,718.60 : 211,121.10 = 111,148.20 : x
  2. Step 2: Convert to fraction form
    140,718.60/211,121.10 = 111,148.20/x
  3. Step 3: Cross multiply
    140,718.60x = 211,121.10 × 111,148.20
  4. Step 4: Simplify right side
    140,718.60x = 23,465,730,247.02
  5. Step 5: Solve for x
    x = 23,465,730,247.02/140,718.60
  6. Step 6: Final answer
    x = 166,756.42

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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.