Home / 142,445.11-196,634.78-88,756.65

Finding the Fourth Proportional to 142,445.11, 196,634.78 and 88,756.65

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Solution

The fourth proportional to 142,445.11, 196,634.78 and 88,756.65 is: 122,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,445.11 : 196,634.78 = 88,756.65 : x
  2. Step 2: Convert to fraction form
    142,445.11/196,634.78 = 88,756.65/x
  3. Step 3: Cross multiply
    142,445.11x = 196,634.78 × 88,756.65
  4. Step 4: Simplify right side
    142,445.11x = 17,452,644,346.29
  5. Step 5: Solve for x
    x = 17,452,644,346.29/142,445.11
  6. Step 6: Final answer
    x = 122,521.89

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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.