Home / 179,081.28-268,588.92-72,437.28

Finding the Fourth Proportional to 179,081.28, 268,588.92 and 72,437.28

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Solution

The fourth proportional to 179,081.28, 268,588.92 and 72,437.28 is: 108,642.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,081.28 : 268,588.92 = 72,437.28 : x
  2. Step 2: Convert to fraction form
    179,081.28/268,588.92 = 72,437.28/x
  3. Step 3: Cross multiply
    179,081.28x = 268,588.92 × 72,437.28
  4. Step 4: Simplify right side
    179,081.28x = 19,455,850,802.94
  5. Step 5: Solve for x
    x = 19,455,850,802.94/179,081.28
  6. Step 6: Final answer
    x = 108,642.57

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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.