Home / 112,257.60-154,942.11-64,538.70

Finding the Fourth Proportional to 112,257.60, 154,942.11 and 64,538.70

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Solution

The fourth proportional to 112,257.60, 154,942.11 and 64,538.70 is: 89,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,257.60 : 154,942.11 = 64,538.70 : x
  2. Step 2: Convert to fraction form
    112,257.60/154,942.11 = 64,538.70/x
  3. Step 3: Cross multiply
    112,257.60x = 154,942.11 × 64,538.70
  4. Step 4: Simplify right side
    112,257.60x = 9,999,762,354.66
  5. Step 5: Solve for x
    x = 9,999,762,354.66/112,257.60
  6. Step 6: Final answer
    x = 89,078.71

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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.