Home / 138,274.75-207,587.18-84,835.41

Finding the Fourth Proportional to 138,274.75, 207,587.18 and 84,835.41

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Solution

The fourth proportional to 138,274.75, 207,587.18 and 84,835.41 is: 127,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,274.75 : 207,587.18 = 84,835.41 : x
  2. Step 2: Convert to fraction form
    138,274.75/207,587.18 = 84,835.41/x
  3. Step 3: Cross multiply
    138,274.75x = 207,587.18 × 84,835.41
  4. Step 4: Simplify right side
    138,274.75x = 17,610,743,526.04
  5. Step 5: Solve for x
    x = 17,610,743,526.04/138,274.75
  6. Step 6: Final answer
    x = 127,360.52

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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.