Home / 140,331.22-193,659.87-76,672.96

Finding the Fourth Proportional to 140,331.22, 193,659.87 and 76,672.96

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Solution

The fourth proportional to 140,331.22, 193,659.87 and 76,672.96 is: 105,810.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,331.22 : 193,659.87 = 76,672.96 : x
  2. Step 2: Convert to fraction form
    140,331.22/193,659.87 = 76,672.96/x
  3. Step 3: Cross multiply
    140,331.22x = 193,659.87 × 76,672.96
  4. Step 4: Simplify right side
    140,331.22x = 14,848,475,466.12
  5. Step 5: Solve for x
    x = 14,848,475,466.12/140,331.22
  6. Step 6: Final answer
    x = 105,810.21

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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.