Home / 159,066.90-219,514.59-87,453.54

Finding the Fourth Proportional to 159,066.90, 219,514.59 and 87,453.54

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Solution

The fourth proportional to 159,066.90, 219,514.59 and 87,453.54 is: 120,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,066.90 : 219,514.59 = 87,453.54 : x
  2. Step 2: Convert to fraction form
    159,066.90/219,514.59 = 87,453.54/x
  3. Step 3: Cross multiply
    159,066.90x = 219,514.59 × 87,453.54
  4. Step 4: Simplify right side
    159,066.90x = 19,197,327,977.15
  5. Step 5: Solve for x
    x = 19,197,327,977.15/159,066.90
  6. Step 6: Final answer
    x = 120,687.13

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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.