Home / 140,694.12-194,157.90-77,035.86

Finding the Fourth Proportional to 140,694.12, 194,157.90 and 77,035.86

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Solution

The fourth proportional to 140,694.12, 194,157.90 and 77,035.86 is: 106,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,694.12 : 194,157.90 = 77,035.86 : x
  2. Step 2: Convert to fraction form
    140,694.12/194,157.90 = 77,035.86/x
  3. Step 3: Cross multiply
    140,694.12x = 194,157.90 × 77,035.86
  4. Step 4: Simplify right side
    140,694.12x = 14,957,120,802.29
  5. Step 5: Solve for x
    x = 14,957,120,802.29/140,694.12
  6. Step 6: Final answer
    x = 106,309.49

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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.