Home / 138,424.80-207,637.20-94,138.05

Finding the Fourth Proportional to 138,424.80, 207,637.20 and 94,138.05

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Solution

The fourth proportional to 138,424.80, 207,637.20 and 94,138.05 is: 141,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,424.80 : 207,637.20 = 94,138.05 : x
  2. Step 2: Convert to fraction form
    138,424.80/207,637.20 = 94,138.05/x
  3. Step 3: Cross multiply
    138,424.80x = 207,637.20 × 94,138.05
  4. Step 4: Simplify right side
    138,424.80x = 19,546,561,115.46
  5. Step 5: Solve for x
    x = 19,546,561,115.46/138,424.80
  6. Step 6: Final answer
    x = 141,207.08

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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.