Home / 123,237.36-170,067.06-66,648.78

Finding the Fourth Proportional to 123,237.36, 170,067.06 and 66,648.78

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Solution

The fourth proportional to 123,237.36, 170,067.06 and 66,648.78 is: 91,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,237.36 : 170,067.06 = 66,648.78 : x
  2. Step 2: Convert to fraction form
    123,237.36/170,067.06 = 66,648.78/x
  3. Step 3: Cross multiply
    123,237.36x = 170,067.06 × 66,648.78
  4. Step 4: Simplify right side
    123,237.36x = 11,334,762,067.19
  5. Step 5: Solve for x
    x = 11,334,762,067.19/123,237.36
  6. Step 6: Final answer
    x = 91,975.05

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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.