Home / 112,928.75-155,841.26-69,899.68

Finding the Fourth Proportional to 112,928.75, 155,841.26 and 69,899.68

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Solution

The fourth proportional to 112,928.75, 155,841.26 and 69,899.68 is: 96,461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,928.75 : 155,841.26 = 69,899.68 : x
  2. Step 2: Convert to fraction form
    112,928.75/155,841.26 = 69,899.68/x
  3. Step 3: Cross multiply
    112,928.75x = 155,841.26 × 69,899.68
  4. Step 4: Simplify right side
    112,928.75x = 10,893,253,370.09
  5. Step 5: Solve for x
    x = 10,893,253,370.09/112,928.75
  6. Step 6: Final answer
    x = 96,461.29

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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.