Home / 138,621.11-207,957.38-43,875.14

Finding the Fourth Proportional to 138,621.11, 207,957.38 and 43,875.14

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Solution

The fourth proportional to 138,621.11, 207,957.38 and 43,875.14 is: 65,820.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,621.11 : 207,957.38 = 43,875.14 : x
  2. Step 2: Convert to fraction form
    138,621.11/207,957.38 = 43,875.14/x
  3. Step 3: Cross multiply
    138,621.11x = 207,957.38 × 43,875.14
  4. Step 4: Simplify right side
    138,621.11x = 9,124,157,902.37
  5. Step 5: Solve for x
    x = 9,124,157,902.37/138,621.11
  6. Step 6: Final answer
    x = 65,820.84

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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.