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Finding the Fourth Proportional to 159,022.93, 219,453.02 and 87,404.62

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Solution

The fourth proportional to 159,022.93, 219,453.02 and 87,404.62 is: 120,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,022.93 : 219,453.02 = 87,404.62 : x
  2. Step 2: Convert to fraction form
    159,022.93/219,453.02 = 87,404.62/x
  3. Step 3: Cross multiply
    159,022.93x = 219,453.02 × 87,404.62
  4. Step 4: Simplify right side
    159,022.93x = 19,181,207,820.95
  5. Step 5: Solve for x
    x = 19,181,207,820.95/159,022.93
  6. Step 6: Final answer
    x = 120,619.13

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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.