Home / 137,577.93-206,366.91-90,819.87

Finding the Fourth Proportional to 137,577.93, 206,366.91 and 90,819.87

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Solution

The fourth proportional to 137,577.93, 206,366.91 and 90,819.87 is: 136,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,577.93 : 206,366.91 = 90,819.87 : x
  2. Step 2: Convert to fraction form
    137,577.93/206,366.91 = 90,819.87/x
  3. Step 3: Cross multiply
    137,577.93x = 206,366.91 × 90,819.87
  4. Step 4: Simplify right side
    137,577.93x = 18,742,215,938.50
  5. Step 5: Solve for x
    x = 18,742,215,938.50/137,577.93
  6. Step 6: Final answer
    x = 136,229.81

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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.