Home / 143,686.72-198,287.62-83,292.42

Finding the Fourth Proportional to 143,686.72, 198,287.62 and 83,292.42

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Solution

The fourth proportional to 143,686.72, 198,287.62 and 83,292.42 is: 114,943.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,686.72 : 198,287.62 = 83,292.42 : x
  2. Step 2: Convert to fraction form
    143,686.72/198,287.62 = 83,292.42/x
  3. Step 3: Cross multiply
    143,686.72x = 198,287.62 × 83,292.42
  4. Step 4: Simplify right side
    143,686.72x = 16,515,855,725.84
  5. Step 5: Solve for x
    x = 16,515,855,725.84/143,686.72
  6. Step 6: Final answer
    x = 114,943.51

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1.5x scale

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.