Home / 144,338.03-199,180.20-78,925.65

Finding the Fourth Proportional to 144,338.03, 199,180.20 and 78,925.65

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Solution

The fourth proportional to 144,338.03, 199,180.20 and 78,925.65 is: 108,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,338.03 : 199,180.20 = 78,925.65 : x
  2. Step 2: Convert to fraction form
    144,338.03/199,180.20 = 78,925.65/x
  3. Step 3: Cross multiply
    144,338.03x = 199,180.20 × 78,925.65
  4. Step 4: Simplify right side
    144,338.03x = 15,720,426,752.13
  5. Step 5: Solve for x
    x = 15,720,426,752.13/144,338.03
  6. Step 6: Final answer
    x = 108,913.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.