Home / 138,847.32-191,608.96-75,185.11

Finding the Fourth Proportional to 138,847.32, 191,608.96 and 75,185.11

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Solution

The fourth proportional to 138,847.32, 191,608.96 and 75,185.11 is: 103,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,847.32 : 191,608.96 = 75,185.11 : x
  2. Step 2: Convert to fraction form
    138,847.32/191,608.96 = 75,185.11/x
  3. Step 3: Cross multiply
    138,847.32x = 191,608.96 × 75,185.11
  4. Step 4: Simplify right side
    138,847.32x = 14,406,140,734.59
  5. Step 5: Solve for x
    x = 14,406,140,734.59/138,847.32
  6. Step 6: Final answer
    x = 103,755.27

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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.