Home / 104,788.12-144,332.13-80,542.72

Finding the Fourth Proportional to 104,788.12, 144,332.13 and 80,542.72

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Solution

The fourth proportional to 104,788.12, 144,332.13 and 80,542.72 is: 110,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,788.12 : 144,332.13 = 80,542.72 : x
  2. Step 2: Convert to fraction form
    104,788.12/144,332.13 = 80,542.72/x
  3. Step 3: Cross multiply
    104,788.12x = 144,332.13 × 80,542.72
  4. Step 4: Simplify right side
    104,788.12x = 11,624,901,611.93
  5. Step 5: Solve for x
    x = 11,624,901,611.93/104,788.12
  6. Step 6: Final answer
    x = 110,937.21

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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.