Home / 121,332.20-181,998.30-108,501.80

Finding the Fourth Proportional to 121,332.20, 181,998.30 and 108,501.80

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Solution

The fourth proportional to 121,332.20, 181,998.30 and 108,501.80 is: 162,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,332.20 : 181,998.30 = 108,501.80 : x
  2. Step 2: Convert to fraction form
    121,332.20/181,998.30 = 108,501.80/x
  3. Step 3: Cross multiply
    121,332.20x = 181,998.30 × 108,501.80
  4. Step 4: Simplify right side
    121,332.20x = 19,747,143,146.94
  5. Step 5: Solve for x
    x = 19,747,143,146.94/121,332.20
  6. Step 6: Final answer
    x = 162,752.70

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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.