Home / 102,205.01-140,962.89-66,406.66

Finding the Fourth Proportional to 102,205.01, 140,962.89 and 66,406.66

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Solution

The fourth proportional to 102,205.01, 140,962.89 and 66,406.66 is: 91,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,205.01 : 140,962.89 = 66,406.66 : x
  2. Step 2: Convert to fraction form
    102,205.01/140,962.89 = 66,406.66/x
  3. Step 3: Cross multiply
    102,205.01x = 140,962.89 × 66,406.66
  4. Step 4: Simplify right side
    102,205.01x = 9,360,874,708.85
  5. Step 5: Solve for x
    x = 9,360,874,708.85/102,205.01
  6. Step 6: Final answer
    x = 91,589.20

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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.