Home / 99,409.46-137,180.95-54,087.62

Finding the Fourth Proportional to 99,409.46, 137,180.95 and 54,087.62

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Solution

The fourth proportional to 99,409.46, 137,180.95 and 54,087.62 is: 74,638.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,409.46 : 137,180.95 = 54,087.62 : x
  2. Step 2: Convert to fraction form
    99,409.46/137,180.95 = 54,087.62/x
  3. Step 3: Cross multiply
    99,409.46x = 137,180.95 × 54,087.62
  4. Step 4: Simplify right side
    99,409.46x = 7,419,790,273.72
  5. Step 5: Solve for x
    x = 7,419,790,273.72/99,409.46
  6. Step 6: Final answer
    x = 74,638.68

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1.5x scale

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.