Home / 143,890.56-198,623.70-108,184.32

Finding the Fourth Proportional to 143,890.56, 198,623.70 and 108,184.32

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Solution

The fourth proportional to 143,890.56, 198,623.70 and 108,184.32 is: 149,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,890.56 : 198,623.70 = 108,184.32 : x
  2. Step 2: Convert to fraction form
    143,890.56/198,623.70 = 108,184.32/x
  3. Step 3: Cross multiply
    143,890.56x = 198,623.70 × 108,184.32
  4. Step 4: Simplify right side
    143,890.56x = 21,487,969,920.38
  5. Step 5: Solve for x
    x = 21,487,969,920.38/143,890.56
  6. Step 6: Final answer
    x = 149,335.51

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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.