Home / 144,869.20-217,044.60-89,400.40

Finding the Fourth Proportional to 144,869.20, 217,044.60 and 89,400.40

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Solution

The fourth proportional to 144,869.20, 217,044.60 and 89,400.40 is: 133,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,869.20 : 217,044.60 = 89,400.40 : x
  2. Step 2: Convert to fraction form
    144,869.20/217,044.60 = 89,400.40/x
  3. Step 3: Cross multiply
    144,869.20x = 217,044.60 × 89,400.40
  4. Step 4: Simplify right side
    144,869.20x = 19,403,874,057.84
  5. Step 5: Solve for x
    x = 19,403,874,057.84/144,869.20
  6. Step 6: Final answer
    x = 133,940.64

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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.