Home / 144,302.20-199,136.46-80,639.98

Finding the Fourth Proportional to 144,302.20, 199,136.46 and 80,639.98

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Solution

The fourth proportional to 144,302.20, 199,136.46 and 80,639.98 is: 111,282.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,302.20 : 199,136.46 = 80,639.98 : x
  2. Step 2: Convert to fraction form
    144,302.20/199,136.46 = 80,639.98/x
  3. Step 3: Cross multiply
    144,302.20x = 199,136.46 × 80,639.98
  4. Step 4: Simplify right side
    144,302.20x = 16,058,360,151.67
  5. Step 5: Solve for x
    x = 16,058,360,151.67/144,302.20
  6. Step 6: Final answer
    x = 111,282.85

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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.