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Finding the Fourth Proportional to 101,751.30, 152,626.95 and 66,321.90

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Solution

The fourth proportional to 101,751.30, 152,626.95 and 66,321.90 is: 99,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,751.30 : 152,626.95 = 66,321.90 : x
  2. Step 2: Convert to fraction form
    101,751.30/152,626.95 = 66,321.90/x
  3. Step 3: Cross multiply
    101,751.30x = 152,626.95 × 66,321.90
  4. Step 4: Simplify right side
    101,751.30x = 10,122,509,315.21
  5. Step 5: Solve for x
    x = 10,122,509,315.21/101,751.30
  6. Step 6: Final answer
    x = 99,482.85

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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.