Home / 148,972.22-205,570.95-85,308.38

Finding the Fourth Proportional to 148,972.22, 205,570.95 and 85,308.38

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Solution

The fourth proportional to 148,972.22, 205,570.95 and 85,308.38 is: 117,719.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,972.22 : 205,570.95 = 85,308.38 : x
  2. Step 2: Convert to fraction form
    148,972.22/205,570.95 = 85,308.38/x
  3. Step 3: Cross multiply
    148,972.22x = 205,570.95 × 85,308.38
  4. Step 4: Simplify right side
    148,972.22x = 17,536,924,719.56
  5. Step 5: Solve for x
    x = 17,536,924,719.56/148,972.22
  6. Step 6: Final answer
    x = 117,719.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.