Home / 142,948.08-197,291.97-79,306.38

Finding the Fourth Proportional to 142,948.08, 197,291.97 and 79,306.38

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Solution

The fourth proportional to 142,948.08, 197,291.97 and 79,306.38 is: 109,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,948.08 : 197,291.97 = 79,306.38 : x
  2. Step 2: Convert to fraction form
    142,948.08/197,291.97 = 79,306.38/x
  3. Step 3: Cross multiply
    142,948.08x = 197,291.97 × 79,306.38
  4. Step 4: Simplify right side
    142,948.08x = 15,646,511,943.77
  5. Step 5: Solve for x
    x = 15,646,511,943.77/142,948.08
  6. Step 6: Final answer
    x = 109,455.91

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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.