Home / 112,512.68-155,194.33-72,162.53

Finding the Fourth Proportional to 112,512.68, 155,194.33 and 72,162.53

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Solution

The fourth proportional to 112,512.68, 155,194.33 and 72,162.53 is: 99,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,512.68 : 155,194.33 = 72,162.53 : x
  2. Step 2: Convert to fraction form
    112,512.68/155,194.33 = 72,162.53/x
  3. Step 3: Cross multiply
    112,512.68x = 155,194.33 × 72,162.53
  4. Step 4: Simplify right side
    112,512.68x = 11,199,215,494.45
  5. Step 5: Solve for x
    x = 11,199,215,494.45/112,512.68
  6. Step 6: Final answer
    x = 99,537.36

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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.