Home / 121,423.05-181,184.85-108,814.59

Finding the Fourth Proportional to 121,423.05, 181,184.85 and 108,814.59

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Solution

The fourth proportional to 121,423.05, 181,184.85 and 108,814.59 is: 162,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,423.05 : 181,184.85 = 108,814.59 : x
  2. Step 2: Convert to fraction form
    121,423.05/181,184.85 = 108,814.59/x
  3. Step 3: Cross multiply
    121,423.05x = 181,184.85 × 108,814.59
  4. Step 4: Simplify right side
    121,423.05x = 19,715,555,166.96
  5. Step 5: Solve for x
    x = 19,715,555,166.96/121,423.05
  6. Step 6: Final answer
    x = 162,370.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.