Home / 216,891.09-299,306.61-120,085.67

Finding the Fourth Proportional to 216,891.09, 299,306.61 and 120,085.67

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Solution

The fourth proportional to 216,891.09, 299,306.61 and 120,085.67 is: 165,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,891.09 : 299,306.61 = 120,085.67 : x
  2. Step 2: Convert to fraction form
    216,891.09/299,306.61 = 120,085.67/x
  3. Step 3: Cross multiply
    216,891.09x = 299,306.61 × 120,085.67
  4. Step 4: Simplify right side
    216,891.09x = 35,942,435,545.55
  5. Step 5: Solve for x
    x = 35,942,435,545.55/216,891.09
  6. Step 6: Final answer
    x = 165,716.51

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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.