Home / 136,773.15-188,520.99-91,434.57

Finding the Fourth Proportional to 136,773.15, 188,520.99 and 91,434.57

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Solution

The fourth proportional to 136,773.15, 188,520.99 and 91,434.57 is: 126,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,773.15 : 188,520.99 = 91,434.57 : x
  2. Step 2: Convert to fraction form
    136,773.15/188,520.99 = 91,434.57/x
  3. Step 3: Cross multiply
    136,773.15x = 188,520.99 × 91,434.57
  4. Step 4: Simplify right side
    136,773.15x = 17,237,336,356.51
  5. Step 5: Solve for x
    x = 17,237,336,356.51/136,773.15
  6. Step 6: Final answer
    x = 126,028.65

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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.