Home / 179,510.91-269,316.31-78,317.81

Finding the Fourth Proportional to 179,510.91, 269,316.31 and 78,317.81

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Solution

The fourth proportional to 179,510.91, 269,316.31 and 78,317.81 is: 117,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,510.91 : 269,316.31 = 78,317.81 : x
  2. Step 2: Convert to fraction form
    179,510.91/269,316.31 = 78,317.81/x
  3. Step 3: Cross multiply
    179,510.91x = 269,316.31 × 78,317.81
  4. Step 4: Simplify right side
    179,510.91x = 21,092,263,596.48
  5. Step 5: Solve for x
    x = 21,092,263,596.48/179,510.91
  6. Step 6: Final answer
    x = 117,498.51

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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.