Home / 158,924.82-219,329.73-87,319.20

Finding the Fourth Proportional to 158,924.82, 219,329.73 and 87,319.20

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Solution

The fourth proportional to 158,924.82, 219,329.73 and 87,319.20 is: 120,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,924.82 : 219,329.73 = 87,319.20 : x
  2. Step 2: Convert to fraction form
    158,924.82/219,329.73 = 87,319.20/x
  3. Step 3: Cross multiply
    158,924.82x = 219,329.73 × 87,319.20
  4. Step 4: Simplify right side
    158,924.82x = 19,151,696,559.82
  5. Step 5: Solve for x
    x = 19,151,696,559.82/158,924.82
  6. Step 6: Final answer
    x = 120,507.90

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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.