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Finding the Fourth Proportional to 144,005.73, 198,737.46 and 80,344.89

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Solution

The fourth proportional to 144,005.73, 198,737.46 and 80,344.89 is: 110,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,005.73 : 198,737.46 = 80,344.89 : x
  2. Step 2: Convert to fraction form
    144,005.73/198,737.46 = 80,344.89/x
  3. Step 3: Cross multiply
    144,005.73x = 198,737.46 × 80,344.89
  4. Step 4: Simplify right side
    144,005.73x = 15,967,539,362.58
  5. Step 5: Solve for x
    x = 15,967,539,362.58/144,005.73
  6. Step 6: Final answer
    x = 110,881.28

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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.