Home / 112,886.25-155,648.35-72,601.71

Finding the Fourth Proportional to 112,886.25, 155,648.35 and 72,601.71

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Solution

The fourth proportional to 112,886.25, 155,648.35 and 72,601.71 is: 100,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,886.25 : 155,648.35 = 72,601.71 : x
  2. Step 2: Convert to fraction form
    112,886.25/155,648.35 = 72,601.71/x
  3. Step 3: Cross multiply
    112,886.25x = 155,648.35 × 72,601.71
  4. Step 4: Simplify right side
    112,886.25x = 11,300,336,368.68
  5. Step 5: Solve for x
    x = 11,300,336,368.68/112,886.25
  6. Step 6: Final answer
    x = 100,103.74

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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.