Home / 139,986.21-209,948.22-40,145.97

Finding the Fourth Proportional to 139,986.21, 209,948.22 and 40,145.97

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Solution

The fourth proportional to 139,986.21, 209,948.22 and 40,145.97 is: 60,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,986.21 : 209,948.22 = 40,145.97 : x
  2. Step 2: Convert to fraction form
    139,986.21/209,948.22 = 40,145.97/x
  3. Step 3: Cross multiply
    139,986.21x = 209,948.22 × 40,145.97
  4. Step 4: Simplify right side
    139,986.21x = 8,428,574,941.67
  5. Step 5: Solve for x
    x = 8,428,574,941.67/139,986.21
  6. Step 6: Final answer
    x = 60,210.04

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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.