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Finding the Fourth Proportional to 148,749, 205,252.97 and 87,497.97

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Solution

The fourth proportional to 148,749, 205,252.97 and 87,497.97 is: 120,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,749 : 205,252.97 = 87,497.97 : x
  2. Step 2: Convert to fraction form
    148,749/205,252.97 = 87,497.97/x
  3. Step 3: Cross multiply
    148,749x = 205,252.97 × 87,497.97
  4. Step 4: Simplify right side
    148,749x = 17,959,217,773.98
  5. Step 5: Solve for x
    x = 17,959,217,773.98/148,749
  6. Step 6: Final answer
    x = 120,735.05

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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.