Home / 140,747.16-194,253.78-80,320.38

Finding the Fourth Proportional to 140,747.16, 194,253.78 and 80,320.38

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Solution

The fourth proportional to 140,747.16, 194,253.78 and 80,320.38 is: 110,855.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,747.16 : 194,253.78 = 80,320.38 : x
  2. Step 2: Convert to fraction form
    140,747.16/194,253.78 = 80,320.38/x
  3. Step 3: Cross multiply
    140,747.16x = 194,253.78 × 80,320.38
  4. Step 4: Simplify right side
    140,747.16x = 15,602,537,426.04
  5. Step 5: Solve for x
    x = 15,602,537,426.04/140,747.16
  6. Step 6: Final answer
    x = 110,855.08

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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.