Home / 216,979.68-325,521.50-90,549.59

Finding the Fourth Proportional to 216,979.68, 325,521.50 and 90,549.59

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Solution

The fourth proportional to 216,979.68, 325,521.50 and 90,549.59 is: 135,846.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,979.68 : 325,521.50 = 90,549.59 : x
  2. Step 2: Convert to fraction form
    216,979.68/325,521.50 = 90,549.59/x
  3. Step 3: Cross multiply
    216,979.68x = 325,521.50 × 90,549.59
  4. Step 4: Simplify right side
    216,979.68x = 29,475,836,280.83
  5. Step 5: Solve for x
    x = 29,475,836,280.83/216,979.68
  6. Step 6: Final answer
    x = 135,846.07

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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.