Home / 134,821.75-186,046.77-74,380.56

Finding the Fourth Proportional to 134,821.75, 186,046.77 and 74,380.56

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Solution

The fourth proportional to 134,821.75, 186,046.77 and 74,380.56 is: 102,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,821.75 : 186,046.77 = 74,380.56 : x
  2. Step 2: Convert to fraction form
    134,821.75/186,046.77 = 74,380.56/x
  3. Step 3: Cross multiply
    134,821.75x = 186,046.77 × 74,380.56
  4. Step 4: Simplify right side
    134,821.75x = 13,838,262,938.79
  5. Step 5: Solve for x
    x = 13,838,262,938.79/134,821.75
  6. Step 6: Final answer
    x = 102,641.18

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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.