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Finding the Fourth Proportional to 112,375.88, 155,083.41 and 64,629.26

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Solution

The fourth proportional to 112,375.88, 155,083.41 and 64,629.26 is: 89,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,375.88 : 155,083.41 = 64,629.26 : x
  2. Step 2: Convert to fraction form
    112,375.88/155,083.41 = 64,629.26/x
  3. Step 3: Cross multiply
    112,375.88x = 155,083.41 × 64,629.26
  4. Step 4: Simplify right side
    112,375.88x = 10,022,925,251.16
  5. Step 5: Solve for x
    x = 10,022,925,251.16/112,375.88
  6. Step 6: Final answer
    x = 89,191.08

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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.