Home / 102,013.43-140,684.38-63,760.77

Finding the Fourth Proportional to 102,013.43, 140,684.38 and 63,760.77

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Solution

The fourth proportional to 102,013.43, 140,684.38 and 63,760.77 is: 87,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,013.43 : 140,684.38 = 63,760.77 : x
  2. Step 2: Convert to fraction form
    102,013.43/140,684.38 = 63,760.77/x
  3. Step 3: Cross multiply
    102,013.43x = 140,684.38 × 63,760.77
  4. Step 4: Simplify right side
    102,013.43x = 8,970,144,236.37
  5. Step 5: Solve for x
    x = 8,970,144,236.37/102,013.43
  6. Step 6: Final answer
    x = 87,931.02

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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.