Home / 143,979.66-198,562.41-90,270.18

Finding the Fourth Proportional to 143,979.66, 198,562.41 and 90,270.18

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Solution

The fourth proportional to 143,979.66, 198,562.41 and 90,270.18 is: 124,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,979.66 : 198,562.41 = 90,270.18 : x
  2. Step 2: Convert to fraction form
    143,979.66/198,562.41 = 90,270.18/x
  3. Step 3: Cross multiply
    143,979.66x = 198,562.41 × 90,270.18
  4. Step 4: Simplify right side
    143,979.66x = 17,924,264,491.93
  5. Step 5: Solve for x
    x = 17,924,264,491.93/143,979.66
  6. Step 6: Final answer
    x = 124,491.64

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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.