Home / 144,009.28-198,732.86-80,345.71

Finding the Fourth Proportional to 144,009.28, 198,732.86 and 80,345.71

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Solution

The fourth proportional to 144,009.28, 198,732.86 and 80,345.71 is: 110,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,009.28 : 198,732.86 = 80,345.71 : x
  2. Step 2: Convert to fraction form
    144,009.28/198,732.86 = 80,345.71/x
  3. Step 3: Cross multiply
    144,009.28x = 198,732.86 × 80,345.71
  4. Step 4: Simplify right side
    144,009.28x = 15,967,332,737.03
  5. Step 5: Solve for x
    x = 15,967,332,737.03/144,009.28
  6. Step 6: Final answer
    x = 110,877.11

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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.