Home / 112,391.68-168,586.40-45,816.16

Finding the Fourth Proportional to 112,391.68, 168,586.40 and 45,816.16

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Solution

The fourth proportional to 112,391.68, 168,586.40 and 45,816.16 is: 68,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,391.68 : 168,586.40 = 45,816.16 : x
  2. Step 2: Convert to fraction form
    112,391.68/168,586.40 = 45,816.16/x
  3. Step 3: Cross multiply
    112,391.68x = 168,586.40 × 45,816.16
  4. Step 4: Simplify right side
    112,391.68x = 7,723,981,476.22
  5. Step 5: Solve for x
    x = 7,723,981,476.22/112,391.68
  6. Step 6: Final answer
    x = 68,723.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.