Home / 144,865.28-217,328-45,022.72

Finding the Fourth Proportional to 144,865.28, 217,328 and 45,022.72

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Solution

The fourth proportional to 144,865.28, 217,328 and 45,022.72 is: 67,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,865.28 : 217,328 = 45,022.72 : x
  2. Step 2: Convert to fraction form
    144,865.28/217,328 = 45,022.72/x
  3. Step 3: Cross multiply
    144,865.28x = 217,328 × 45,022.72
  4. Step 4: Simplify right side
    144,865.28x = 9,784,697,692.16
  5. Step 5: Solve for x
    x = 9,784,697,692.16/144,865.28
  6. Step 6: Final answer
    x = 67,543.43

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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.