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Finding the Fourth Proportional to 144,609.19, 217,003.59 and 69,737.05

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Solution

The fourth proportional to 144,609.19, 217,003.59 and 69,737.05 is: 104,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,609.19 : 217,003.59 = 69,737.05 : x
  2. Step 2: Convert to fraction form
    144,609.19/217,003.59 = 69,737.05/x
  3. Step 3: Cross multiply
    144,609.19x = 217,003.59 × 69,737.05
  4. Step 4: Simplify right side
    144,609.19x = 15,133,190,206.01
  5. Step 5: Solve for x
    x = 15,133,190,206.01/144,609.19
  6. Step 6: Final answer
    x = 104,648.88

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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.