Home / 103,240.20-154,755.70-69,963.60

Finding the Fourth Proportional to 103,240.20, 154,755.70 and 69,963.60

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Solution

The fourth proportional to 103,240.20, 154,755.70 and 69,963.60 is: 104,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,240.20 : 154,755.70 = 69,963.60 : x
  2. Step 2: Convert to fraction form
    103,240.20/154,755.70 = 69,963.60/x
  3. Step 3: Cross multiply
    103,240.20x = 154,755.70 × 69,963.60
  4. Step 4: Simplify right side
    103,240.20x = 10,827,265,892.52
  5. Step 5: Solve for x
    x = 10,827,265,892.52/103,240.20
  6. Step 6: Final answer
    x = 104,874.51

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1.5x scale

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.