Home / 99,842.33-149,721.90-40,637.81

Finding the Fourth Proportional to 99,842.33, 149,721.90 and 40,637.81

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Solution

The fourth proportional to 99,842.33, 149,721.90 and 40,637.81 is: 60,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,842.33 : 149,721.90 = 40,637.81 : x
  2. Step 2: Convert to fraction form
    99,842.33/149,721.90 = 40,637.81/x
  3. Step 3: Cross multiply
    99,842.33x = 149,721.90 × 40,637.81
  4. Step 4: Simplify right side
    99,842.33x = 6,084,370,125.04
  5. Step 5: Solve for x
    x = 6,084,370,125.04/99,842.33
  6. Step 6: Final answer
    x = 60,939.79

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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.