Home / 140,385.57-193,731.61-76,723.35

Finding the Fourth Proportional to 140,385.57, 193,731.61 and 76,723.35

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Solution

The fourth proportional to 140,385.57, 193,731.61 and 76,723.35 is: 105,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,385.57 : 193,731.61 = 76,723.35 : x
  2. Step 2: Convert to fraction form
    140,385.57/193,731.61 = 76,723.35/x
  3. Step 3: Cross multiply
    140,385.57x = 193,731.61 × 76,723.35
  4. Step 4: Simplify right side
    140,385.57x = 14,863,738,120.09
  5. Step 5: Solve for x
    x = 14,863,738,120.09/140,385.57
  6. Step 6: Final answer
    x = 105,877.96

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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.