Home / 119,883.12-179,853.88-39,920.92

Finding the Fourth Proportional to 119,883.12, 179,853.88 and 39,920.92

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Solution

The fourth proportional to 119,883.12, 179,853.88 and 39,920.92 is: 59,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,883.12 : 179,853.88 = 39,920.92 : x
  2. Step 2: Convert to fraction form
    119,883.12/179,853.88 = 39,920.92/x
  3. Step 3: Cross multiply
    119,883.12x = 179,853.88 × 39,920.92
  4. Step 4: Simplify right side
    119,883.12x = 7,179,932,355.17
  5. Step 5: Solve for x
    x = 7,179,932,355.17/119,883.12
  6. Step 6: Final answer
    x = 59,891.10

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1.5x scale

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.