Home / 99,409.86-137,182.14-54,086.58

Finding the Fourth Proportional to 99,409.86, 137,182.14 and 54,086.58

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Solution

The fourth proportional to 99,409.86, 137,182.14 and 54,086.58 is: 74,637.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,409.86 : 137,182.14 = 54,086.58 : x
  2. Step 2: Convert to fraction form
    99,409.86/137,182.14 = 54,086.58/x
  3. Step 3: Cross multiply
    99,409.86x = 137,182.14 × 54,086.58
  4. Step 4: Simplify right side
    99,409.86x = 7,419,712,789.68
  5. Step 5: Solve for x
    x = 7,419,712,789.68/99,409.86
  6. Step 6: Final answer
    x = 74,637.59

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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.