Home / 159,962.72-220,792.64-99,497.43

Finding the Fourth Proportional to 159,962.72, 220,792.64 and 99,497.43

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Solution

The fourth proportional to 159,962.72, 220,792.64 and 99,497.43 is: 137,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,962.72 : 220,792.64 = 99,497.43 : x
  2. Step 2: Convert to fraction form
    159,962.72/220,792.64 = 99,497.43/x
  3. Step 3: Cross multiply
    159,962.72x = 220,792.64 × 99,497.43
  4. Step 4: Simplify right side
    159,962.72x = 21,968,299,745.43
  5. Step 5: Solve for x
    x = 21,968,299,745.43/159,962.72
  6. Step 6: Final answer
    x = 137,333.88

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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.