Home / 139,462.44-209,143.04-76,329.20

Finding the Fourth Proportional to 139,462.44, 209,143.04 and 76,329.20

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Solution

The fourth proportional to 139,462.44, 209,143.04 and 76,329.20 is: 114,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,462.44 : 209,143.04 = 76,329.20 : x
  2. Step 2: Convert to fraction form
    139,462.44/209,143.04 = 76,329.20/x
  3. Step 3: Cross multiply
    139,462.44x = 209,143.04 × 76,329.20
  4. Step 4: Simplify right side
    139,462.44x = 15,963,720,928.77
  5. Step 5: Solve for x
    x = 15,963,720,928.77/139,462.44
  6. Step 6: Final answer
    x = 114,466.10

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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.