Home / 143,899.74-198,524.93-83,459.57

Finding the Fourth Proportional to 143,899.74, 198,524.93 and 83,459.57

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Solution

The fourth proportional to 143,899.74, 198,524.93 and 83,459.57 is: 115,141.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,899.74 : 198,524.93 = 83,459.57 : x
  2. Step 2: Convert to fraction form
    143,899.74/198,524.93 = 83,459.57/x
  3. Step 3: Cross multiply
    143,899.74x = 198,524.93 × 83,459.57
  4. Step 4: Simplify right side
    143,899.74x = 16,568,803,882.16
  5. Step 5: Solve for x
    x = 16,568,803,882.16/143,899.74
  6. Step 6: Final answer
    x = 115,141.31

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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.