Home / 140,920.84-194,469.96-77,259.16

Finding the Fourth Proportional to 140,920.84, 194,469.96 and 77,259.16

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Solution

The fourth proportional to 140,920.84, 194,469.96 and 77,259.16 is: 106,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,920.84 : 194,469.96 = 77,259.16 : x
  2. Step 2: Convert to fraction form
    140,920.84/194,469.96 = 77,259.16/x
  3. Step 3: Cross multiply
    140,920.84x = 194,469.96 × 77,259.16
  4. Step 4: Simplify right side
    140,920.84x = 15,024,585,754.83
  5. Step 5: Solve for x
    x = 15,024,585,754.83/140,920.84
  6. Step 6: Final answer
    x = 106,617.20

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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.