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Finding the Fourth Proportional to 150,490.88, 207,698.40 and 86,827.52

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Solution

The fourth proportional to 150,490.88, 207,698.40 and 86,827.52 is: 119,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,490.88 : 207,698.40 = 86,827.52 : x
  2. Step 2: Convert to fraction form
    150,490.88/207,698.40 = 86,827.52/x
  3. Step 3: Cross multiply
    150,490.88x = 207,698.40 × 86,827.52
  4. Step 4: Simplify right side
    150,490.88x = 18,033,936,979.97
  5. Step 5: Solve for x
    x = 18,033,936,979.97/150,490.88
  6. Step 6: Final answer
    x = 119,834.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.