Home / 144,908.20-217,103.10-89,439.40

Finding the Fourth Proportional to 144,908.20, 217,103.10 and 89,439.40

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Solution

The fourth proportional to 144,908.20, 217,103.10 and 89,439.40 is: 133,999.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,908.20 : 217,103.10 = 89,439.40 : x
  2. Step 2: Convert to fraction form
    144,908.20/217,103.10 = 89,439.40/x
  3. Step 3: Cross multiply
    144,908.20x = 217,103.10 × 89,439.40
  4. Step 4: Simplify right side
    144,908.20x = 19,417,571,002.14
  5. Step 5: Solve for x
    x = 19,417,571,002.14/144,908.20
  6. Step 6: Final answer
    x = 133,999.12

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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.