Home / 123,175.36-170,055.44-80,807.52

Finding the Fourth Proportional to 123,175.36, 170,055.44 and 80,807.52

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Solution

The fourth proportional to 123,175.36, 170,055.44 and 80,807.52 is: 111,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,175.36 : 170,055.44 = 80,807.52 : x
  2. Step 2: Convert to fraction form
    123,175.36/170,055.44 = 80,807.52/x
  3. Step 3: Cross multiply
    123,175.36x = 170,055.44 × 80,807.52
  4. Step 4: Simplify right side
    123,175.36x = 13,741,758,368.91
  5. Step 5: Solve for x
    x = 13,741,758,368.91/123,175.36
  6. Step 6: Final answer
    x = 111,562.56

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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.