Home / 112,613.92-168,966-42,513.12

Finding the Fourth Proportional to 112,613.92, 168,966 and 42,513.12

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Solution

The fourth proportional to 112,613.92, 168,966 and 42,513.12 is: 63,786.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,613.92 : 168,966 = 42,513.12 : x
  2. Step 2: Convert to fraction form
    112,613.92/168,966 = 42,513.12/x
  3. Step 3: Cross multiply
    112,613.92x = 168,966 × 42,513.12
  4. Step 4: Simplify right side
    112,613.92x = 7,183,271,833.92
  5. Step 5: Solve for x
    x = 7,183,271,833.92/112,613.92
  6. Step 6: Final answer
    x = 63,786.71

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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.