Home / 144,155.08-198,943.80-80,491.48

Finding the Fourth Proportional to 144,155.08, 198,943.80 and 80,491.48

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Solution

The fourth proportional to 144,155.08, 198,943.80 and 80,491.48 is: 111,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,155.08 : 198,943.80 = 80,491.48 : x
  2. Step 2: Convert to fraction form
    144,155.08/198,943.80 = 80,491.48/x
  3. Step 3: Cross multiply
    144,155.08x = 198,943.80 × 80,491.48
  4. Step 4: Simplify right side
    144,155.08x = 16,013,280,898.82
  5. Step 5: Solve for x
    x = 16,013,280,898.82/144,155.08
  6. Step 6: Final answer
    x = 111,083.71

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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.