Home / 144,044.16-198,780.81-80,382.30

Finding the Fourth Proportional to 144,044.16, 198,780.81 and 80,382.30

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Solution

The fourth proportional to 144,044.16, 198,780.81 and 80,382.30 is: 110,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,044.16 : 198,780.81 = 80,382.30 : x
  2. Step 2: Convert to fraction form
    144,044.16/198,780.81 = 80,382.30/x
  3. Step 3: Cross multiply
    144,044.16x = 198,780.81 × 80,382.30
  4. Step 4: Simplify right side
    144,044.16x = 15,978,458,703.66
  5. Step 5: Solve for x
    x = 15,978,458,703.66/144,044.16
  6. Step 6: Final answer
    x = 110,927.50

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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.