Home / 109,478.24-150,856.80-75,497.12

Finding the Fourth Proportional to 109,478.24, 150,856.80 and 75,497.12

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Solution

The fourth proportional to 109,478.24, 150,856.80 and 75,497.12 is: 104,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,478.24 : 150,856.80 = 75,497.12 : x
  2. Step 2: Convert to fraction form
    109,478.24/150,856.80 = 75,497.12/x
  3. Step 3: Cross multiply
    109,478.24x = 150,856.80 × 75,497.12
  4. Step 4: Simplify right side
    109,478.24x = 11,389,253,932.42
  5. Step 5: Solve for x
    x = 11,389,253,932.42/109,478.24
  6. Step 6: Final answer
    x = 104,032.12

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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.