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Finding the Fourth Proportional to 123,756.26, 170,783.71 and 67,167.63

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Solution

The fourth proportional to 123,756.26, 170,783.71 and 67,167.63 is: 92,691.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,756.26 : 170,783.71 = 67,167.63 : x
  2. Step 2: Convert to fraction form
    123,756.26/170,783.71 = 67,167.63/x
  3. Step 3: Cross multiply
    123,756.26x = 170,783.71 × 67,167.63
  4. Step 4: Simplify right side
    123,756.26x = 11,471,136,875.39
  5. Step 5: Solve for x
    x = 11,471,136,875.39/123,756.26
  6. Step 6: Final answer
    x = 92,691.37

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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.