Home / 145,137.15-217,689.39-50,349.87

Finding the Fourth Proportional to 145,137.15, 217,689.39 and 50,349.87

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Solution

The fourth proportional to 145,137.15, 217,689.39 and 50,349.87 is: 75,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,137.15 : 217,689.39 = 50,349.87 : x
  2. Step 2: Convert to fraction form
    145,137.15/217,689.39 = 50,349.87/x
  3. Step 3: Cross multiply
    145,137.15x = 217,689.39 × 50,349.87
  4. Step 4: Simplify right side
    145,137.15x = 10,960,632,486.88
  5. Step 5: Solve for x
    x = 10,960,632,486.88/145,137.15
  6. Step 6: Final answer
    x = 75,519.14

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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.