Home / 123,917.76-171,006.12-67,329.36

Finding the Fourth Proportional to 123,917.76, 171,006.12 and 67,329.36

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Solution

The fourth proportional to 123,917.76, 171,006.12 and 67,329.36 is: 92,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,917.76 : 171,006.12 = 67,329.36 : x
  2. Step 2: Convert to fraction form
    123,917.76/171,006.12 = 67,329.36/x
  3. Step 3: Cross multiply
    123,917.76x = 171,006.12 × 67,329.36
  4. Step 4: Simplify right side
    123,917.76x = 11,513,732,615.68
  5. Step 5: Solve for x
    x = 11,513,732,615.68/123,917.76
  6. Step 6: Final answer
    x = 92,914.31

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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.