Home / 121,198.46-181,865.39-70,656.21

Finding the Fourth Proportional to 121,198.46, 181,865.39 and 70,656.21

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Solution

The fourth proportional to 121,198.46, 181,865.39 and 70,656.21 is: 106,023.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,198.46 : 181,865.39 = 70,656.21 : x
  2. Step 2: Convert to fraction form
    121,198.46/181,865.39 = 70,656.21/x
  3. Step 3: Cross multiply
    121,198.46x = 181,865.39 × 70,656.21
  4. Step 4: Simplify right side
    121,198.46x = 12,849,918,834.29
  5. Step 5: Solve for x
    x = 12,849,918,834.29/121,198.46
  6. Step 6: Final answer
    x = 106,023.78

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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.