Home / 143,535.14-198,065.62-83,109.86

Finding the Fourth Proportional to 143,535.14, 198,065.62 and 83,109.86

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Solution

The fourth proportional to 143,535.14, 198,065.62 and 83,109.86 is: 114,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,535.14 : 198,065.62 = 83,109.86 : x
  2. Step 2: Convert to fraction form
    143,535.14/198,065.62 = 83,109.86/x
  3. Step 3: Cross multiply
    143,535.14x = 198,065.62 × 83,109.86
  4. Step 4: Simplify right side
    143,535.14x = 16,461,205,733.23
  5. Step 5: Solve for x
    x = 16,461,205,733.23/143,535.14
  6. Step 6: Final answer
    x = 114,684.15

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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.