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Finding the Fourth Proportional to 101,557.60, 140,149.56 and 55,617.01

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Solution

The fourth proportional to 101,557.60, 140,149.56 and 55,617.01 is: 76,751.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,557.60 : 140,149.56 = 55,617.01 : x
  2. Step 2: Convert to fraction form
    101,557.60/140,149.56 = 55,617.01/x
  3. Step 3: Cross multiply
    101,557.60x = 140,149.56 × 55,617.01
  4. Step 4: Simplify right side
    101,557.60x = 7,794,699,480.02
  5. Step 5: Solve for x
    x = 7,794,699,480.02/101,557.60
  6. Step 6: Final answer
    x = 76,751.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.