Home / 140,385.32-193,731.26-76,723.10

Finding the Fourth Proportional to 140,385.32, 193,731.26 and 76,723.10

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Solution

The fourth proportional to 140,385.32, 193,731.26 and 76,723.10 is: 105,877.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,385.32 : 193,731.26 = 76,723.10 : x
  2. Step 2: Convert to fraction form
    140,385.32/193,731.26 = 76,723.10/x
  3. Step 3: Cross multiply
    140,385.32x = 193,731.26 × 76,723.10
  4. Step 4: Simplify right side
    140,385.32x = 14,863,662,057.26
  5. Step 5: Solve for x
    x = 14,863,662,057.26/140,385.32
  6. Step 6: Final answer
    x = 105,877.61

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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.