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Finding the Fourth Proportional to 145,625.83, 200,963.23 and 81,963.62

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Solution

The fourth proportional to 145,625.83, 200,963.23 and 81,963.62 is: 113,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,625.83 : 200,963.23 = 81,963.62 : x
  2. Step 2: Convert to fraction form
    145,625.83/200,963.23 = 81,963.62/x
  3. Step 3: Cross multiply
    145,625.83x = 200,963.23 × 81,963.62
  4. Step 4: Simplify right side
    145,625.83x = 16,471,673,817.69
  5. Step 5: Solve for x
    x = 16,471,673,817.69/145,625.83
  6. Step 6: Final answer
    x = 113,109.56

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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.