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Finding the Fourth Proportional to 123,175.58, 169,969.56 and 90,927.33

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Solution

The fourth proportional to 123,175.58, 169,969.56 and 90,927.33 is: 125,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,175.58 : 169,969.56 = 90,927.33 : x
  2. Step 2: Convert to fraction form
    123,175.58/169,969.56 = 90,927.33/x
  3. Step 3: Cross multiply
    123,175.58x = 169,969.56 × 90,927.33
  4. Step 4: Simplify right side
    123,175.58x = 15,454,878,272.07
  5. Step 5: Solve for x
    x = 15,454,878,272.07/123,175.58
  6. Step 6: Final answer
    x = 125,470.32

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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.