Home / 143,681.33-198,280.19-83,287.04

Finding the Fourth Proportional to 143,681.33, 198,280.19 and 83,287.04

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Solution

The fourth proportional to 143,681.33, 198,280.19 and 83,287.04 is: 114,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,681.33 : 198,280.19 = 83,287.04 : x
  2. Step 2: Convert to fraction form
    143,681.33/198,280.19 = 83,287.04/x
  3. Step 3: Cross multiply
    143,681.33x = 198,280.19 × 83,287.04
  4. Step 4: Simplify right side
    143,681.33x = 16,514,169,332.55
  5. Step 5: Solve for x
    x = 16,514,169,332.55/143,681.33
  6. Step 6: Final answer
    x = 114,936.08

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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.