Home / 109,378.12-150,942.54-64,082.92

Finding the Fourth Proportional to 109,378.12, 150,942.54 and 64,082.92

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Solution

The fourth proportional to 109,378.12, 150,942.54 and 64,082.92 is: 88,434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,378.12 : 150,942.54 = 64,082.92 : x
  2. Step 2: Convert to fraction form
    109,378.12/150,942.54 = 64,082.92/x
  3. Step 3: Cross multiply
    109,378.12x = 150,942.54 × 64,082.92
  4. Step 4: Simplify right side
    109,378.12x = 9,672,838,715.42
  5. Step 5: Solve for x
    x = 9,672,838,715.42/109,378.12
  6. Step 6: Final answer
    x = 88,434.86

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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.