Home / 142,967.68-197,301.85-79,305.53

Finding the Fourth Proportional to 142,967.68, 197,301.85 and 79,305.53

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Solution

The fourth proportional to 142,967.68, 197,301.85 and 79,305.53 is: 109,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,967.68 : 197,301.85 = 79,305.53 : x
  2. Step 2: Convert to fraction form
    142,967.68/197,301.85 = 79,305.53/x
  3. Step 3: Cross multiply
    142,967.68x = 197,301.85 × 79,305.53
  4. Step 4: Simplify right side
    142,967.68x = 15,647,126,599.46
  5. Step 5: Solve for x
    x = 15,647,126,599.46/142,967.68
  6. Step 6: Final answer
    x = 109,445.20

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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.