Home / 138,871.35-208,307.03-122,250.15

Finding the Fourth Proportional to 138,871.35, 208,307.03 and 122,250.15

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Solution

The fourth proportional to 138,871.35, 208,307.03 and 122,250.15 is: 183,375.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,871.35 : 208,307.03 = 122,250.15 : x
  2. Step 2: Convert to fraction form
    138,871.35/208,307.03 = 122,250.15/x
  3. Step 3: Cross multiply
    138,871.35x = 208,307.03 × 122,250.15
  4. Step 4: Simplify right side
    138,871.35x = 25,465,565,052.30
  5. Step 5: Solve for x
    x = 25,465,565,052.30/138,871.35
  6. Step 6: Final answer
    x = 183,375.23

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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.