Home / 109,727.49-151,489.20-69,475.76

Finding the Fourth Proportional to 109,727.49, 151,489.20 and 69,475.76

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Solution

The fourth proportional to 109,727.49, 151,489.20 and 69,475.76 is: 95,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,727.49 : 151,489.20 = 69,475.76 : x
  2. Step 2: Convert to fraction form
    109,727.49/151,489.20 = 69,475.76/x
  3. Step 3: Cross multiply
    109,727.49x = 151,489.20 × 69,475.76
  4. Step 4: Simplify right side
    109,727.49x = 10,524,827,025.59
  5. Step 5: Solve for x
    x = 10,524,827,025.59/109,727.49
  6. Step 6: Final answer
    x = 95,917.87

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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.