Home / 143,972.91-198,682.47-80,310.69

Finding the Fourth Proportional to 143,972.91, 198,682.47 and 80,310.69

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Solution

The fourth proportional to 143,972.91, 198,682.47 and 80,310.69 is: 110,828.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,972.91 : 198,682.47 = 80,310.69 : x
  2. Step 2: Convert to fraction form
    143,972.91/198,682.47 = 80,310.69/x
  3. Step 3: Cross multiply
    143,972.91x = 198,682.47 × 80,310.69
  4. Step 4: Simplify right side
    143,972.91x = 15,956,326,256.60
  5. Step 5: Solve for x
    x = 15,956,326,256.60/143,972.91
  6. Step 6: Final answer
    x = 110,828.67

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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.