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Finding the Fourth Proportional to 150,371.52, 207,519.56 and 85,858.21

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Solution

The fourth proportional to 150,371.52, 207,519.56 and 85,858.21 is: 118,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,371.52 : 207,519.56 = 85,858.21 : x
  2. Step 2: Convert to fraction form
    150,371.52/207,519.56 = 85,858.21/x
  3. Step 3: Cross multiply
    150,371.52x = 207,519.56 × 85,858.21
  4. Step 4: Simplify right side
    150,371.52x = 17,817,257,961.59
  5. Step 5: Solve for x
    x = 17,817,257,961.59/150,371.52
  6. Step 6: Final answer
    x = 118,488.25

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1.5x scale

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.