Home / 112,276.80-168,405.48-45,723.96

Finding the Fourth Proportional to 112,276.80, 168,405.48 and 45,723.96

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Solution

The fourth proportional to 112,276.80, 168,405.48 and 45,723.96 is: 68,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,276.80 : 168,405.48 = 45,723.96 : x
  2. Step 2: Convert to fraction form
    112,276.80/168,405.48 = 45,723.96/x
  3. Step 3: Cross multiply
    112,276.80x = 168,405.48 × 45,723.96
  4. Step 4: Simplify right side
    112,276.80x = 7,700,165,431.30
  5. Step 5: Solve for x
    x = 7,700,165,431.30/112,276.80
  6. Step 6: Final answer
    x = 68,581.98

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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.