Home / 109,921.92-151,691.20-59,621.12

Finding the Fourth Proportional to 109,921.92, 151,691.20 and 59,621.12

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Solution

The fourth proportional to 109,921.92, 151,691.20 and 59,621.12 is: 82,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,921.92 : 151,691.20 = 59,621.12 : x
  2. Step 2: Convert to fraction form
    109,921.92/151,691.20 = 59,621.12/x
  3. Step 3: Cross multiply
    109,921.92x = 151,691.20 × 59,621.12
  4. Step 4: Simplify right side
    109,921.92x = 9,043,999,238.14
  5. Step 5: Solve for x
    x = 9,043,999,238.14/109,921.92
  6. Step 6: Final answer
    x = 82,276.58

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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.