Home / 104,101.20-156,224.70-66,752.10

Finding the Fourth Proportional to 104,101.20, 156,224.70 and 66,752.10

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Solution

The fourth proportional to 104,101.20, 156,224.70 and 66,752.10 is: 100,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,101.20 : 156,224.70 = 66,752.10 : x
  2. Step 2: Convert to fraction form
    104,101.20/156,224.70 = 66,752.10/x
  3. Step 3: Cross multiply
    104,101.20x = 156,224.70 × 66,752.10
  4. Step 4: Simplify right side
    104,101.20x = 10,428,326,796.87
  5. Step 5: Solve for x
    x = 10,428,326,796.87/104,101.20
  6. Step 6: Final answer
    x = 100,174.90

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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.