Home / 101,988.44-140,739.48-56,669.61

Finding the Fourth Proportional to 101,988.44, 140,739.48 and 56,669.61

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Solution

The fourth proportional to 101,988.44, 140,739.48 and 56,669.61 is: 78,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,988.44 : 140,739.48 = 56,669.61 : x
  2. Step 2: Convert to fraction form
    101,988.44/140,739.48 = 56,669.61/x
  3. Step 3: Cross multiply
    101,988.44x = 140,739.48 × 56,669.61
  4. Step 4: Simplify right side
    101,988.44x = 7,975,651,443.20
  5. Step 5: Solve for x
    x = 7,975,651,443.20/101,988.44
  6. Step 6: Final answer
    x = 78,201.53

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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.