Home / 112,513.44-155,195.39-72,163.29

Finding the Fourth Proportional to 112,513.44, 155,195.39 and 72,163.29

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Solution

The fourth proportional to 112,513.44, 155,195.39 and 72,163.29 is: 99,538.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,513.44 : 155,195.39 = 72,163.29 : x
  2. Step 2: Convert to fraction form
    112,513.44/155,195.39 = 72,163.29/x
  3. Step 3: Cross multiply
    112,513.44x = 155,195.39 × 72,163.29
  4. Step 4: Simplify right side
    112,513.44x = 11,199,409,574.42
  5. Step 5: Solve for x
    x = 11,199,409,574.42/112,513.44
  6. Step 6: Final answer
    x = 99,538.42

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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.