Home / 137,430.90-206,175.78-42,659.10

Finding the Fourth Proportional to 137,430.90, 206,175.78 and 42,659.10

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Solution

The fourth proportional to 137,430.90, 206,175.78 and 42,659.10 is: 63,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,430.90 : 206,175.78 = 42,659.10 : x
  2. Step 2: Convert to fraction form
    137,430.90/206,175.78 = 42,659.10/x
  3. Step 3: Cross multiply
    137,430.90x = 206,175.78 × 42,659.10
  4. Step 4: Simplify right side
    137,430.90x = 8,795,273,216.60
  5. Step 5: Solve for x
    x = 8,795,273,216.60/137,430.90
  6. Step 6: Final answer
    x = 63,997.79

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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.