Home / 179,929.76-270,069.59-86,501.12

Finding the Fourth Proportional to 179,929.76, 270,069.59 and 86,501.12

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Solution

The fourth proportional to 179,929.76, 270,069.59 and 86,501.12 is: 129,835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,929.76 : 270,069.59 = 86,501.12 : x
  2. Step 2: Convert to fraction form
    179,929.76/270,069.59 = 86,501.12/x
  3. Step 3: Cross multiply
    179,929.76x = 270,069.59 × 86,501.12
  4. Step 4: Simplify right side
    179,929.76x = 23,361,320,878.85
  5. Step 5: Solve for x
    x = 23,361,320,878.85/179,929.76
  6. Step 6: Final answer
    x = 129,835.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.