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Finding the Fourth Proportional to 99,833.67, 149,786.16 and 42,883.65

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Solution

The fourth proportional to 99,833.67, 149,786.16 and 42,883.65 is: 64,340.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,833.67 : 149,786.16 = 42,883.65 : x
  2. Step 2: Convert to fraction form
    99,833.67/149,786.16 = 42,883.65/x
  3. Step 3: Cross multiply
    99,833.67x = 149,786.16 × 42,883.65
  4. Step 4: Simplify right side
    99,833.67x = 6,423,377,260.28
  5. Step 5: Solve for x
    x = 6,423,377,260.28/99,833.67
  6. Step 6: Final answer
    x = 64,340.79

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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.