Home / 138,254.40-207,292.32-75,908.16

Finding the Fourth Proportional to 138,254.40, 207,292.32 and 75,908.16

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Solution

The fourth proportional to 138,254.40, 207,292.32 and 75,908.16 is: 113,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,254.40 : 207,292.32 = 75,908.16 : x
  2. Step 2: Convert to fraction form
    138,254.40/207,292.32 = 75,908.16/x
  3. Step 3: Cross multiply
    138,254.40x = 207,292.32 × 75,908.16
  4. Step 4: Simplify right side
    138,254.40x = 15,735,178,593.33
  5. Step 5: Solve for x
    x = 15,735,178,593.33/138,254.40
  6. Step 6: Final answer
    x = 113,813.22

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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.