Home / 143,288.10-214,932.15-131,915.70

Finding the Fourth Proportional to 143,288.10, 214,932.15 and 131,915.70

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Solution

The fourth proportional to 143,288.10, 214,932.15 and 131,915.70 is: 197,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,288.10 : 214,932.15 = 131,915.70 : x
  2. Step 2: Convert to fraction form
    143,288.10/214,932.15 = 131,915.70/x
  3. Step 3: Cross multiply
    143,288.10x = 214,932.15 × 131,915.70
  4. Step 4: Simplify right side
    143,288.10x = 28,352,925,019.76
  5. Step 5: Solve for x
    x = 28,352,925,019.76/143,288.10
  6. Step 6: Final answer
    x = 197,873.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.