Home / 101,804.72-140,517.24-57,107.12

Finding the Fourth Proportional to 101,804.72, 140,517.24 and 57,107.12

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Solution

The fourth proportional to 101,804.72, 140,517.24 and 57,107.12 is: 78,822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,804.72 : 140,517.24 = 57,107.12 : x
  2. Step 2: Convert to fraction form
    101,804.72/140,517.24 = 57,107.12/x
  3. Step 3: Cross multiply
    101,804.72x = 140,517.24 × 57,107.12
  4. Step 4: Simplify right side
    101,804.72x = 8,024,534,886.75
  5. Step 5: Solve for x
    x = 8,024,534,886.75/101,804.72
  6. Step 6: Final answer
    x = 78,822.82

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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.