Home / 112,205.15-168,162.28-45,567.87

Finding the Fourth Proportional to 112,205.15, 168,162.28 and 45,567.87

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Solution

The fourth proportional to 112,205.15, 168,162.28 and 45,567.87 is: 68,292.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,205.15 : 168,162.28 = 45,567.87 : x
  2. Step 2: Convert to fraction form
    112,205.15/168,162.28 = 45,567.87/x
  3. Step 3: Cross multiply
    112,205.15x = 168,162.28 × 45,567.87
  4. Step 4: Simplify right side
    112,205.15x = 7,662,796,169.42
  5. Step 5: Solve for x
    x = 7,662,796,169.42/112,205.15
  6. Step 6: Final answer
    x = 68,292.73

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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.