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Finding the Fourth Proportional to 74,232.10, 111,348.15 and 69,955.30

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Solution

The fourth proportional to 74,232.10, 111,348.15 and 69,955.30 is: 104,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,232.10 : 111,348.15 = 69,955.30 : x
  2. Step 2: Convert to fraction form
    74,232.10/111,348.15 = 69,955.30/x
  3. Step 3: Cross multiply
    74,232.10x = 111,348.15 × 69,955.30
  4. Step 4: Simplify right side
    74,232.10x = 7,789,393,237.70
  5. Step 5: Solve for x
    x = 7,789,393,237.70/74,232.10
  6. Step 6: Final answer
    x = 104,932.95

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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.