Home / 102,856.12-141,954.56-57,536.62

Finding the Fourth Proportional to 102,856.12, 141,954.56 and 57,536.62

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Solution

The fourth proportional to 102,856.12, 141,954.56 and 57,536.62 is: 79,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,856.12 : 141,954.56 = 57,536.62 : x
  2. Step 2: Convert to fraction form
    102,856.12/141,954.56 = 57,536.62/x
  3. Step 3: Cross multiply
    102,856.12x = 141,954.56 × 57,536.62
  4. Step 4: Simplify right side
    102,856.12x = 8,167,585,288.30
  5. Step 5: Solve for x
    x = 8,167,585,288.30/102,856.12
  6. Step 6: Final answer
    x = 79,407.87

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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.