Home / 158,723.22-219,030.84-87,101.81

Finding the Fourth Proportional to 158,723.22, 219,030.84 and 87,101.81

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Solution

The fourth proportional to 158,723.22, 219,030.84 and 87,101.81 is: 120,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,723.22 : 219,030.84 = 87,101.81 : x
  2. Step 2: Convert to fraction form
    158,723.22/219,030.84 = 87,101.81/x
  3. Step 3: Cross multiply
    158,723.22x = 219,030.84 × 87,101.81
  4. Step 4: Simplify right side
    158,723.22x = 19,077,981,514.67
  5. Step 5: Solve for x
    x = 19,077,981,514.67/158,723.22
  6. Step 6: Final answer
    x = 120,196.54

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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.