Home / 143,722.70-198,341.81-82,480.08

Finding the Fourth Proportional to 143,722.70, 198,341.81 and 82,480.08

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Solution

The fourth proportional to 143,722.70, 198,341.81 and 82,480.08 is: 113,825.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,722.70 : 198,341.81 = 82,480.08 : x
  2. Step 2: Convert to fraction form
    143,722.70/198,341.81 = 82,480.08/x
  3. Step 3: Cross multiply
    143,722.70x = 198,341.81 × 82,480.08
  4. Step 4: Simplify right side
    143,722.70x = 16,359,248,356.14
  5. Step 5: Solve for x
    x = 16,359,248,356.14/143,722.70
  6. Step 6: Final answer
    x = 113,825.08

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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.