Home / 216,719.43-299,119.49-131,863.83

Finding the Fourth Proportional to 216,719.43, 299,119.49 and 131,863.83

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Solution

The fourth proportional to 216,719.43, 299,119.49 and 131,863.83 is: 182,000.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,719.43 : 299,119.49 = 131,863.83 : x
  2. Step 2: Convert to fraction form
    216,719.43/299,119.49 = 131,863.83/x
  3. Step 3: Cross multiply
    216,719.43x = 299,119.49 × 131,863.83
  4. Step 4: Simplify right side
    216,719.43x = 39,443,041,579.05
  5. Step 5: Solve for x
    x = 39,443,041,579.05/216,719.43
  6. Step 6: Final answer
    x = 182,000.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.