Home / 138,603.32-207,908.22-45,116.36

Finding the Fourth Proportional to 138,603.32, 207,908.22 and 45,116.36

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Solution

The fourth proportional to 138,603.32, 207,908.22 and 45,116.36 is: 67,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,603.32 : 207,908.22 = 45,116.36 : x
  2. Step 2: Convert to fraction form
    138,603.32/207,908.22 = 45,116.36/x
  3. Step 3: Cross multiply
    138,603.32x = 207,908.22 × 45,116.36
  4. Step 4: Simplify right side
    138,603.32x = 9,380,062,100.48
  5. Step 5: Solve for x
    x = 9,380,062,100.48/138,603.32
  6. Step 6: Final answer
    x = 67,675.59

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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.