Home / 101,982.28-140,703.06-57,261.64

Finding the Fourth Proportional to 101,982.28, 140,703.06 and 57,261.64

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Solution

The fourth proportional to 101,982.28, 140,703.06 and 57,261.64 is: 79,002.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,982.28 : 140,703.06 = 57,261.64 : x
  2. Step 2: Convert to fraction form
    101,982.28/140,703.06 = 57,261.64/x
  3. Step 3: Cross multiply
    101,982.28x = 140,703.06 × 57,261.64
  4. Step 4: Simplify right side
    101,982.28x = 8,056,887,968.62
  5. Step 5: Solve for x
    x = 8,056,887,968.62/101,982.28
  6. Step 6: Final answer
    x = 79,002.82

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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.