Home / 112,104.66-167,970.15-78,765.03

Finding the Fourth Proportional to 112,104.66, 167,970.15 and 78,765.03

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Solution

The fourth proportional to 112,104.66, 167,970.15 and 78,765.03 is: 118,016.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,104.66 : 167,970.15 = 78,765.03 : x
  2. Step 2: Convert to fraction form
    112,104.66/167,970.15 = 78,765.03/x
  3. Step 3: Cross multiply
    112,104.66x = 167,970.15 × 78,765.03
  4. Step 4: Simplify right side
    112,104.66x = 13,230,173,510.03
  5. Step 5: Solve for x
    x = 13,230,173,510.03/112,104.66
  6. Step 6: Final answer
    x = 118,016.27

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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.