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Finding the Fourth Proportional to 99,151.64, 148,676.42 and 39,971.42

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Solution

The fourth proportional to 99,151.64, 148,676.42 and 39,971.42 is: 59,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,151.64 : 148,676.42 = 39,971.42 : x
  2. Step 2: Convert to fraction form
    99,151.64/148,676.42 = 39,971.42/x
  3. Step 3: Cross multiply
    99,151.64x = 148,676.42 × 39,971.42
  4. Step 4: Simplify right side
    99,151.64x = 5,942,806,984.46
  5. Step 5: Solve for x
    x = 5,942,806,984.46/99,151.64
  6. Step 6: Final answer
    x = 59,936.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.