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Finding the Fourth Proportional to 112,503.60, 168,774.84 and 45,979.92

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Solution

The fourth proportional to 112,503.60, 168,774.84 and 45,979.92 is: 68,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,503.60 : 168,774.84 = 45,979.92 : x
  2. Step 2: Convert to fraction form
    112,503.60/168,774.84 = 45,979.92/x
  3. Step 3: Cross multiply
    112,503.60x = 168,774.84 × 45,979.92
  4. Step 4: Simplify right side
    112,503.60x = 7,760,253,641.21
  5. Step 5: Solve for x
    x = 7,760,253,641.21/112,503.60
  6. Step 6: Final answer
    x = 68,977.83

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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.