Home / 103,240.26-154,755.78-69,963.66

Finding the Fourth Proportional to 103,240.26, 154,755.78 and 69,963.66

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Solution

The fourth proportional to 103,240.26, 154,755.78 and 69,963.66 is: 104,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,240.26 : 154,755.78 = 69,963.66 : x
  2. Step 2: Convert to fraction form
    103,240.26/154,755.78 = 69,963.66/x
  3. Step 3: Cross multiply
    103,240.26x = 154,755.78 × 69,963.66
  4. Step 4: Simplify right side
    103,240.26x = 10,827,280,774.95
  5. Step 5: Solve for x
    x = 10,827,280,774.95/103,240.26
  6. Step 6: Final answer
    x = 104,874.60

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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.