Home / 106,517.15-147,046.93-66,243.89

Finding the Fourth Proportional to 106,517.15, 147,046.93 and 66,243.89

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Solution

The fourth proportional to 106,517.15, 147,046.93 and 66,243.89 is: 91,449.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,517.15 : 147,046.93 = 66,243.89 : x
  2. Step 2: Convert to fraction form
    106,517.15/147,046.93 = 66,243.89/x
  3. Step 3: Cross multiply
    106,517.15x = 147,046.93 × 66,243.89
  4. Step 4: Simplify right side
    106,517.15x = 9,740,960,003.33
  5. Step 5: Solve for x
    x = 9,740,960,003.33/106,517.15
  6. Step 6: Final answer
    x = 91,449.69

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1.5x scale

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.