Home / 102,178.44-140,909.22-67,661.64

Finding the Fourth Proportional to 102,178.44, 140,909.22 and 67,661.64

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Solution

The fourth proportional to 102,178.44, 140,909.22 and 67,661.64 is: 93,308.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,178.44 : 140,909.22 = 67,661.64 : x
  2. Step 2: Convert to fraction form
    102,178.44/140,909.22 = 67,661.64/x
  3. Step 3: Cross multiply
    102,178.44x = 140,909.22 × 67,661.64
  4. Step 4: Simplify right side
    102,178.44x = 9,534,148,916.32
  5. Step 5: Solve for x
    x = 9,534,148,916.32/102,178.44
  6. Step 6: Final answer
    x = 93,308.81

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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.