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Finding the Fourth Proportional to 112,101.60, 154,695.60 and 71,758.56

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Solution

The fourth proportional to 112,101.60, 154,695.60 and 71,758.56 is: 99,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,101.60 : 154,695.60 = 71,758.56 : x
  2. Step 2: Convert to fraction form
    112,101.60/154,695.60 = 71,758.56/x
  3. Step 3: Cross multiply
    112,101.60x = 154,695.60 × 71,758.56
  4. Step 4: Simplify right side
    112,101.60x = 11,100,733,494.34
  5. Step 5: Solve for x
    x = 11,100,733,494.34/112,101.60
  6. Step 6: Final answer
    x = 99,023.86

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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.