Home / 112,742.32-155,229.96-95,712.88

Finding the Fourth Proportional to 112,742.32, 155,229.96 and 95,712.88

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Solution

The fourth proportional to 112,742.32, 155,229.96 and 95,712.88 is: 131,782.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,742.32 : 155,229.96 = 95,712.88 : x
  2. Step 2: Convert to fraction form
    112,742.32/155,229.96 = 95,712.88/x
  3. Step 3: Cross multiply
    112,742.32x = 155,229.96 × 95,712.88
  4. Step 4: Simplify right side
    112,742.32x = 14,857,506,533.88
  5. Step 5: Solve for x
    x = 14,857,506,533.88/112,742.32
  6. Step 6: Final answer
    x = 131,782.87

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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.