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Finding the Fourth Proportional to 144,859.33, 199,915.10 and 81,197.13

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Solution

The fourth proportional to 144,859.33, 199,915.10 and 81,197.13 is: 112,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,859.33 : 199,915.10 = 81,197.13 : x
  2. Step 2: Convert to fraction form
    144,859.33/199,915.10 = 81,197.13/x
  3. Step 3: Cross multiply
    144,859.33x = 199,915.10 × 81,197.13
  4. Step 4: Simplify right side
    144,859.33x = 16,232,532,363.66
  5. Step 5: Solve for x
    x = 16,232,532,363.66/144,859.33
  6. Step 6: Final answer
    x = 112,057.21

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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.