Home / 137,550.56-206,325.84-90,792.50

Finding the Fourth Proportional to 137,550.56, 206,325.84 and 90,792.50

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Solution

The fourth proportional to 137,550.56, 206,325.84 and 90,792.50 is: 136,188.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,550.56 : 206,325.84 = 90,792.50 : x
  2. Step 2: Convert to fraction form
    137,550.56/206,325.84 = 90,792.50/x
  3. Step 3: Cross multiply
    137,550.56x = 206,325.84 × 90,792.50
  4. Step 4: Simplify right side
    137,550.56x = 18,732,838,828.20
  5. Step 5: Solve for x
    x = 18,732,838,828.20/137,550.56
  6. Step 6: Final answer
    x = 136,188.75

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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.