Home / 137,579.85-206,401.95-42,805.35

Finding the Fourth Proportional to 137,579.85, 206,401.95 and 42,805.35

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Solution

The fourth proportional to 137,579.85, 206,401.95 and 42,805.35 is: 64,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,579.85 : 206,401.95 = 42,805.35 : x
  2. Step 2: Convert to fraction form
    137,579.85/206,401.95 = 42,805.35/x
  3. Step 3: Cross multiply
    137,579.85x = 206,401.95 × 42,805.35
  4. Step 4: Simplify right side
    137,579.85x = 8,835,107,710.43
  5. Step 5: Solve for x
    x = 8,835,107,710.43/137,579.85
  6. Step 6: Final answer
    x = 64,218.04

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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.