Home / 216,961.32-325,522.02-90,614.76

Finding the Fourth Proportional to 216,961.32, 325,522.02 and 90,614.76

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Solution

The fourth proportional to 216,961.32, 325,522.02 and 90,614.76 is: 135,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,961.32 : 325,522.02 = 90,614.76 : x
  2. Step 2: Convert to fraction form
    216,961.32/325,522.02 = 90,614.76/x
  3. Step 3: Cross multiply
    216,961.32x = 325,522.02 × 90,614.76
  4. Step 4: Simplify right side
    216,961.32x = 29,497,099,717.02
  5. Step 5: Solve for x
    x = 29,497,099,717.02/216,961.32
  6. Step 6: Final answer
    x = 135,955.57

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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.