Home / 137,584.56-206,376.88-90,826.50

Finding the Fourth Proportional to 137,584.56, 206,376.88 and 90,826.50

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Solution

The fourth proportional to 137,584.56, 206,376.88 and 90,826.50 is: 136,239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,584.56 : 206,376.88 = 90,826.50 : x
  2. Step 2: Convert to fraction form
    137,584.56/206,376.88 = 90,826.50/x
  3. Step 3: Cross multiply
    137,584.56x = 206,376.88 × 90,826.50
  4. Step 4: Simplify right side
    137,584.56x = 18,744,488,432.37
  5. Step 5: Solve for x
    x = 18,744,488,432.37/137,584.56
  6. Step 6: Final answer
    x = 136,239.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.