Home / 112,863.54-155,801.79-72,081.06

Finding the Fourth Proportional to 112,863.54, 155,801.79 and 72,081.06

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Solution

The fourth proportional to 112,863.54, 155,801.79 and 72,081.06 is: 99,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,863.54 : 155,801.79 = 72,081.06 : x
  2. Step 2: Convert to fraction form
    112,863.54/155,801.79 = 72,081.06/x
  3. Step 3: Cross multiply
    112,863.54x = 155,801.79 × 72,081.06
  4. Step 4: Simplify right side
    112,863.54x = 11,230,358,173.10
  5. Step 5: Solve for x
    x = 11,230,358,173.10/112,863.54
  6. Step 6: Final answer
    x = 99,503.86

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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.