Home / 99,836.67-149,790.66-42,886.65

Finding the Fourth Proportional to 99,836.67, 149,790.66 and 42,886.65

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Solution

The fourth proportional to 99,836.67, 149,790.66 and 42,886.65 is: 64,345.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,836.67 : 149,790.66 = 42,886.65 : x
  2. Step 2: Convert to fraction form
    99,836.67/149,790.66 = 42,886.65/x
  3. Step 3: Cross multiply
    99,836.67x = 149,790.66 × 42,886.65
  4. Step 4: Simplify right side
    99,836.67x = 6,424,019,608.69
  5. Step 5: Solve for x
    x = 6,424,019,608.69/99,836.67
  6. Step 6: Final answer
    x = 64,345.29

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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.