Home / 106,531.67-147,066.93-66,258.43

Finding the Fourth Proportional to 106,531.67, 147,066.93 and 66,258.43

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Solution

The fourth proportional to 106,531.67, 147,066.93 and 66,258.43 is: 91,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,531.67 : 147,066.93 = 66,258.43 : x
  2. Step 2: Convert to fraction form
    106,531.67/147,066.93 = 66,258.43/x
  3. Step 3: Cross multiply
    106,531.67x = 147,066.93 × 66,258.43
  4. Step 4: Simplify right side
    106,531.67x = 9,744,423,519.05
  5. Step 5: Solve for x
    x = 9,744,423,519.05/106,531.67
  6. Step 6: Final answer
    x = 91,469.73

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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.