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Finding the Fourth Proportional to 144,915.62, 199,995.14 and 80,391.22

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Solution

The fourth proportional to 144,915.62, 199,995.14 and 80,391.22 is: 110,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,915.62 : 199,995.14 = 80,391.22 : x
  2. Step 2: Convert to fraction form
    144,915.62/199,995.14 = 80,391.22/x
  3. Step 3: Cross multiply
    144,915.62x = 199,995.14 × 80,391.22
  4. Step 4: Simplify right side
    144,915.62x = 16,077,852,999.66
  5. Step 5: Solve for x
    x = 16,077,852,999.66/144,915.62
  6. Step 6: Final answer
    x = 110,946.31

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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.