Home / 112,513.27-155,195.16-72,163.12

Finding the Fourth Proportional to 112,513.27, 155,195.16 and 72,163.12

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Solution

The fourth proportional to 112,513.27, 155,195.16 and 72,163.12 is: 99,538.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,513.27 : 155,195.16 = 72,163.12 : x
  2. Step 2: Convert to fraction form
    112,513.27/155,195.16 = 72,163.12/x
  3. Step 3: Cross multiply
    112,513.27x = 155,195.16 × 72,163.12
  4. Step 4: Simplify right side
    112,513.27x = 11,199,366,954.50
  5. Step 5: Solve for x
    x = 11,199,366,954.50/112,513.27
  6. Step 6: Final answer
    x = 99,538.19

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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.