Home / 102,017.67-140,781.54-56,694.48

Finding the Fourth Proportional to 102,017.67, 140,781.54 and 56,694.48

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Solution

The fourth proportional to 102,017.67, 140,781.54 and 56,694.48 is: 78,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,017.67 : 140,781.54 = 56,694.48 : x
  2. Step 2: Convert to fraction form
    102,017.67/140,781.54 = 56,694.48/x
  3. Step 3: Cross multiply
    102,017.67x = 140,781.54 × 56,694.48
  4. Step 4: Simplify right side
    102,017.67x = 7,981,536,203.90
  5. Step 5: Solve for x
    x = 7,981,536,203.90/102,017.67
  6. Step 6: Final answer
    x = 78,236.80

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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.