Home / 100,793.35-139,101.33-66,742.57

Finding the Fourth Proportional to 100,793.35, 139,101.33 and 66,742.57

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Solution

The fourth proportional to 100,793.35, 139,101.33 and 66,742.57 is: 92,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,793.35 : 139,101.33 = 66,742.57 : x
  2. Step 2: Convert to fraction form
    100,793.35/139,101.33 = 66,742.57/x
  3. Step 3: Cross multiply
    100,793.35x = 139,101.33 × 66,742.57
  4. Step 4: Simplify right side
    100,793.35x = 9,283,980,254.62
  5. Step 5: Solve for x
    x = 9,283,980,254.62/100,793.35
  6. Step 6: Final answer
    x = 92,109.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.