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Finding the Fourth Proportional to 159,141.07, 219,613.11 and 87,524.11

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Solution

The fourth proportional to 159,141.07, 219,613.11 and 87,524.11 is: 120,782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,141.07 : 219,613.11 = 87,524.11 : x
  2. Step 2: Convert to fraction form
    159,141.07/219,613.11 = 87,524.11/x
  3. Step 3: Cross multiply
    159,141.07x = 219,613.11 × 87,524.11
  4. Step 4: Simplify right side
    159,141.07x = 19,221,441,997.08
  5. Step 5: Solve for x
    x = 19,221,441,997.08/159,141.07
  6. Step 6: Final answer
    x = 120,782.41

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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.