Home / 102,162.11-140,903.82-66,363.66

Finding the Fourth Proportional to 102,162.11, 140,903.82 and 66,363.66

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Solution

The fourth proportional to 102,162.11, 140,903.82 and 66,363.66 is: 91,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,162.11 : 140,903.82 = 66,363.66 : x
  2. Step 2: Convert to fraction form
    102,162.11/140,903.82 = 66,363.66/x
  3. Step 3: Cross multiply
    102,162.11x = 140,903.82 × 66,363.66
  4. Step 4: Simplify right side
    102,162.11x = 9,350,893,203.18
  5. Step 5: Solve for x
    x = 9,350,893,203.18/102,162.11
  6. Step 6: Final answer
    x = 91,529.96

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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.