Home / 137,420.36-206,120.61-42,648.06

Finding the Fourth Proportional to 137,420.36, 206,120.61 and 42,648.06

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Solution

The fourth proportional to 137,420.36, 206,120.61 and 42,648.06 is: 63,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,420.36 : 206,120.61 = 42,648.06 : x
  2. Step 2: Convert to fraction form
    137,420.36/206,120.61 = 42,648.06/x
  3. Step 3: Cross multiply
    137,420.36x = 206,120.61 × 42,648.06
  4. Step 4: Simplify right side
    137,420.36x = 8,790,644,142.52
  5. Step 5: Solve for x
    x = 8,790,644,142.52/137,420.36
  6. Step 6: Final answer
    x = 63,969.01

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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.