Home / 112,885.25-155,646.97-72,600.71

Finding the Fourth Proportional to 112,885.25, 155,646.97 and 72,600.71

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Solution

The fourth proportional to 112,885.25, 155,646.97 and 72,600.71 is: 100,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,885.25 : 155,646.97 = 72,600.71 : x
  2. Step 2: Convert to fraction form
    112,885.25/155,646.97 = 72,600.71/x
  3. Step 3: Cross multiply
    112,885.25x = 155,646.97 × 72,600.71
  4. Step 4: Simplify right side
    112,885.25x = 11,300,079,571.61
  5. Step 5: Solve for x
    x = 11,300,079,571.61/112,885.25
  6. Step 6: Final answer
    x = 100,102.36

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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.