Home / 107,839.85-148,833.32-61,917.57

Finding the Fourth Proportional to 107,839.85, 148,833.32 and 61,917.57

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Solution

The fourth proportional to 107,839.85, 148,833.32 and 61,917.57 is: 85,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,839.85 : 148,833.32 = 61,917.57 : x
  2. Step 2: Convert to fraction form
    107,839.85/148,833.32 = 61,917.57/x
  3. Step 3: Cross multiply
    107,839.85x = 148,833.32 × 61,917.57
  4. Step 4: Simplify right side
    107,839.85x = 9,215,397,199.84
  5. Step 5: Solve for x
    x = 9,215,397,199.84/107,839.85
  6. Step 6: Final answer
    x = 85,454.47

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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.