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Finding the Fourth Proportional to 144,369.84, 199,240.98 and 80,703.60

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Solution

The fourth proportional to 144,369.84, 199,240.98 and 80,703.60 is: 111,376.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,369.84 : 199,240.98 = 80,703.60 : x
  2. Step 2: Convert to fraction form
    144,369.84/199,240.98 = 80,703.60/x
  3. Step 3: Cross multiply
    144,369.84x = 199,240.98 × 80,703.60
  4. Step 4: Simplify right side
    144,369.84x = 16,079,464,353.53
  5. Step 5: Solve for x
    x = 16,079,464,353.53/144,369.84
  6. Step 6: Final answer
    x = 111,376.89

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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.