Home / 216,081.54-324,156.87-91,423.62

Finding the Fourth Proportional to 216,081.54, 324,156.87 and 91,423.62

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Solution

The fourth proportional to 216,081.54, 324,156.87 and 91,423.62 is: 137,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,081.54 : 324,156.87 = 91,423.62 : x
  2. Step 2: Convert to fraction form
    216,081.54/324,156.87 = 91,423.62/x
  3. Step 3: Cross multiply
    216,081.54x = 324,156.87 × 91,423.62
  4. Step 4: Simplify right side
    216,081.54x = 29,635,594,503.27
  5. Step 5: Solve for x
    x = 29,635,594,503.27/216,081.54
  6. Step 6: Final answer
    x = 137,150.05

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1.5x scale

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.