Home / 143,320.20-214,721.10-116,881.80

Finding the Fourth Proportional to 143,320.20, 214,721.10 and 116,881.80

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Solution

The fourth proportional to 143,320.20, 214,721.10 and 116,881.80 is: 175,111.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,320.20 : 214,721.10 = 116,881.80 : x
  2. Step 2: Convert to fraction form
    143,320.20/214,721.10 = 116,881.80/x
  3. Step 3: Cross multiply
    143,320.20x = 214,721.10 × 116,881.80
  4. Step 4: Simplify right side
    143,320.20x = 25,096,988,665.98
  5. Step 5: Solve for x
    x = 25,096,988,665.98/143,320.20
  6. Step 6: Final answer
    x = 175,111.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.