Home / 112,338.90-168,424.11-67,956.57

Finding the Fourth Proportional to 112,338.90, 168,424.11 and 67,956.57

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Solution

The fourth proportional to 112,338.90, 168,424.11 and 67,956.57 is: 101,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,338.90 : 168,424.11 = 67,956.57 : x
  2. Step 2: Convert to fraction form
    112,338.90/168,424.11 = 67,956.57/x
  3. Step 3: Cross multiply
    112,338.90x = 168,424.11 × 67,956.57
  4. Step 4: Simplify right side
    112,338.90x = 11,445,524,820.90
  5. Step 5: Solve for x
    x = 11,445,524,820.90/112,338.90
  6. Step 6: Final answer
    x = 101,883.90

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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.