Home / 120,956.20-181,283.10-61,815.40

Finding the Fourth Proportional to 120,956.20, 181,283.10 and 61,815.40

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Solution

The fourth proportional to 120,956.20, 181,283.10 and 61,815.40 is: 92,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,956.20 : 181,283.10 = 61,815.40 : x
  2. Step 2: Convert to fraction form
    120,956.20/181,283.10 = 61,815.40/x
  3. Step 3: Cross multiply
    120,956.20x = 181,283.10 × 61,815.40
  4. Step 4: Simplify right side
    120,956.20x = 11,206,087,339.74
  5. Step 5: Solve for x
    x = 11,206,087,339.74/120,956.20
  6. Step 6: Final answer
    x = 92,645.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.