Home / 137,305.08-206,035.47-74,124.36

Finding the Fourth Proportional to 137,305.08, 206,035.47 and 74,124.36

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Solution

The fourth proportional to 137,305.08, 206,035.47 and 74,124.36 is: 111,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,305.08 : 206,035.47 = 74,124.36 : x
  2. Step 2: Convert to fraction form
    137,305.08/206,035.47 = 74,124.36/x
  3. Step 3: Cross multiply
    137,305.08x = 206,035.47 × 74,124.36
  4. Step 4: Simplify right side
    137,305.08x = 15,272,247,351.05
  5. Step 5: Solve for x
    x = 15,272,247,351.05/137,305.08
  6. Step 6: Final answer
    x = 111,228.57

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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.