Home / 123,513.50-170,448.75-66,924.88

Finding the Fourth Proportional to 123,513.50, 170,448.75 and 66,924.88

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Solution

The fourth proportional to 123,513.50, 170,448.75 and 66,924.88 is: 92,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,513.50 : 170,448.75 = 66,924.88 : x
  2. Step 2: Convert to fraction form
    123,513.50/170,448.75 = 66,924.88/x
  3. Step 3: Cross multiply
    123,513.50x = 170,448.75 × 66,924.88
  4. Step 4: Simplify right side
    123,513.50x = 11,407,261,713.78
  5. Step 5: Solve for x
    x = 11,407,261,713.78/123,513.50
  6. Step 6: Final answer
    x = 92,356.39

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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.