Home / 142,972.74-197,306.01-79,311.60

Finding the Fourth Proportional to 142,972.74, 197,306.01 and 79,311.60

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Solution

The fourth proportional to 142,972.74, 197,306.01 and 79,311.60 is: 109,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,972.74 : 197,306.01 = 79,311.60 : x
  2. Step 2: Convert to fraction form
    142,972.74/197,306.01 = 79,311.60/x
  3. Step 3: Cross multiply
    142,972.74x = 197,306.01 × 79,311.60
  4. Step 4: Simplify right side
    142,972.74x = 15,648,655,342.72
  5. Step 5: Solve for x
    x = 15,648,655,342.72/142,972.74
  6. Step 6: Final answer
    x = 109,452.02

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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.