Home / 112,833.58-155,781.24-72,617.39

Finding the Fourth Proportional to 112,833.58, 155,781.24 and 72,617.39

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Solution

The fourth proportional to 112,833.58, 155,781.24 and 72,617.39 is: 100,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,833.58 : 155,781.24 = 72,617.39 : x
  2. Step 2: Convert to fraction form
    112,833.58/155,781.24 = 72,617.39/x
  3. Step 3: Cross multiply
    112,833.58x = 155,781.24 × 72,617.39
  4. Step 4: Simplify right side
    112,833.58x = 11,312,427,059.76
  5. Step 5: Solve for x
    x = 11,312,427,059.76/112,833.58
  6. Step 6: Final answer
    x = 100,257.63

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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.