Home / 112,565.40-168,764.26-68,181.45

Finding the Fourth Proportional to 112,565.40, 168,764.26 and 68,181.45

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Solution

The fourth proportional to 112,565.40, 168,764.26 and 68,181.45 is: 102,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,565.40 : 168,764.26 = 68,181.45 : x
  2. Step 2: Convert to fraction form
    112,565.40/168,764.26 = 68,181.45/x
  3. Step 3: Cross multiply
    112,565.40x = 168,764.26 × 68,181.45
  4. Step 4: Simplify right side
    112,565.40x = 11,506,591,954.98
  5. Step 5: Solve for x
    x = 11,506,591,954.98/112,565.40
  6. Step 6: Final answer
    x = 102,221.39

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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.