Home / 158,932.76-219,327.29-87,317.39

Finding the Fourth Proportional to 158,932.76, 219,327.29 and 87,317.39

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Solution

The fourth proportional to 158,932.76, 219,327.29 and 87,317.39 is: 120,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,932.76 : 219,327.29 = 87,317.39 : x
  2. Step 2: Convert to fraction form
    158,932.76/219,327.29 = 87,317.39/x
  3. Step 3: Cross multiply
    158,932.76x = 219,327.29 × 87,317.39
  4. Step 4: Simplify right side
    158,932.76x = 19,151,087,448.90
  5. Step 5: Solve for x
    x = 19,151,087,448.90/158,932.76
  6. Step 6: Final answer
    x = 120,498.05

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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.