Home / 216,581.49-298,919.40-125,990.03

Finding the Fourth Proportional to 216,581.49, 298,919.40 and 125,990.03

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Solution

The fourth proportional to 216,581.49, 298,919.40 and 125,990.03 is: 173,887.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,581.49 : 298,919.40 = 125,990.03 : x
  2. Step 2: Convert to fraction form
    216,581.49/298,919.40 = 125,990.03/x
  3. Step 3: Cross multiply
    216,581.49x = 298,919.40 × 125,990.03
  4. Step 4: Simplify right side
    216,581.49x = 37,660,862,049.03
  5. Step 5: Solve for x
    x = 37,660,862,049.03/216,581.49
  6. Step 6: Final answer
    x = 173,887.72

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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.