Home / 112,282.44-168,511.65-78,327.60

Finding the Fourth Proportional to 112,282.44, 168,511.65 and 78,327.60

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Solution

The fourth proportional to 112,282.44, 168,511.65 and 78,327.60 is: 117,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,282.44 : 168,511.65 = 78,327.60 : x
  2. Step 2: Convert to fraction form
    112,282.44/168,511.65 = 78,327.60/x
  3. Step 3: Cross multiply
    112,282.44x = 168,511.65 × 78,327.60
  4. Step 4: Simplify right side
    112,282.44x = 13,199,113,116.54
  5. Step 5: Solve for x
    x = 13,199,113,116.54/112,282.44
  6. Step 6: Final answer
    x = 117,552.78

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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.