Home / 142,865.78-214,229.41-43,007.36

Finding the Fourth Proportional to 142,865.78, 214,229.41 and 43,007.36

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Solution

The fourth proportional to 142,865.78, 214,229.41 and 43,007.36 is: 64,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,865.78 : 214,229.41 = 43,007.36 : x
  2. Step 2: Convert to fraction form
    142,865.78/214,229.41 = 43,007.36/x
  3. Step 3: Cross multiply
    142,865.78x = 214,229.41 × 43,007.36
  4. Step 4: Simplify right side
    142,865.78x = 9,213,440,179.79
  5. Step 5: Solve for x
    x = 9,213,440,179.79/142,865.78
  6. Step 6: Final answer
    x = 64,490.18

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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.