Home / 231,049.45-318,715.23-139,104.82

Finding the Fourth Proportional to 231,049.45, 318,715.23 and 139,104.82

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Solution

The fourth proportional to 231,049.45, 318,715.23 and 139,104.82 is: 191,884.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,049.45 : 318,715.23 = 139,104.82 : x
  2. Step 2: Convert to fraction form
    231,049.45/318,715.23 = 139,104.82/x
  3. Step 3: Cross multiply
    231,049.45x = 318,715.23 × 139,104.82
  4. Step 4: Simplify right side
    231,049.45x = 44,334,824,700.41
  5. Step 5: Solve for x
    x = 44,334,824,700.41/231,049.45
  6. Step 6: Final answer
    x = 191,884.57

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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.