Home / 138,616.02-207,949.62-43,870.02

Finding the Fourth Proportional to 138,616.02, 207,949.62 and 43,870.02

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Solution

The fourth proportional to 138,616.02, 207,949.62 and 43,870.02 is: 65,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,616.02 : 207,949.62 = 43,870.02 : x
  2. Step 2: Convert to fraction form
    138,616.02/207,949.62 = 43,870.02/x
  3. Step 3: Cross multiply
    138,616.02x = 207,949.62 × 43,870.02
  4. Step 4: Simplify right side
    138,616.02x = 9,122,753,988.39
  5. Step 5: Solve for x
    x = 9,122,753,988.39/138,616.02
  6. Step 6: Final answer
    x = 65,813.13

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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.