Home / 137,715.03-206,378.60-109,509.89

Finding the Fourth Proportional to 137,715.03, 206,378.60 and 109,509.89

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Solution

The fourth proportional to 137,715.03, 206,378.60 and 109,509.89 is: 164,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,715.03 : 206,378.60 = 109,509.89 : x
  2. Step 2: Convert to fraction form
    137,715.03/206,378.60 = 109,509.89/x
  3. Step 3: Cross multiply
    137,715.03x = 206,378.60 × 109,509.89
  4. Step 4: Simplify right side
    137,715.03x = 22,600,496,204.91
  5. Step 5: Solve for x
    x = 22,600,496,204.91/137,715.03
  6. Step 6: Final answer
    x = 164,110.60

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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.