Home / 154,298.03-212,974.11-89,779.73

Finding the Fourth Proportional to 154,298.03, 212,974.11 and 89,779.73

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Solution

The fourth proportional to 154,298.03, 212,974.11 and 89,779.73 is: 123,920.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,298.03 : 212,974.11 = 89,779.73 : x
  2. Step 2: Convert to fraction form
    154,298.03/212,974.11 = 89,779.73/x
  3. Step 3: Cross multiply
    154,298.03x = 212,974.11 × 89,779.73
  4. Step 4: Simplify right side
    154,298.03x = 19,120,757,027.92
  5. Step 5: Solve for x
    x = 19,120,757,027.92/154,298.03
  6. Step 6: Final answer
    x = 123,920.94

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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.