Home / 140,266.62-193,439.72-109,643.76

Finding the Fourth Proportional to 140,266.62, 193,439.72 and 109,643.76

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Solution

The fourth proportional to 140,266.62, 193,439.72 and 109,643.76 is: 151,208.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,266.62 : 193,439.72 = 109,643.76 : x
  2. Step 2: Convert to fraction form
    140,266.62/193,439.72 = 109,643.76/x
  3. Step 3: Cross multiply
    140,266.62x = 193,439.72 × 109,643.76
  4. Step 4: Simplify right side
    140,266.62x = 21,209,458,234.15
  5. Step 5: Solve for x
    x = 21,209,458,234.15/140,266.62
  6. Step 6: Final answer
    x = 151,208.17

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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.