Home / 137,750.20-206,545-53,411.84

Finding the Fourth Proportional to 137,750.20, 206,545 and 53,411.84

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Solution

The fourth proportional to 137,750.20, 206,545 and 53,411.84 is: 80,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,750.20 : 206,545 = 53,411.84 : x
  2. Step 2: Convert to fraction form
    137,750.20/206,545 = 53,411.84/x
  3. Step 3: Cross multiply
    137,750.20x = 206,545 × 53,411.84
  4. Step 4: Simplify right side
    137,750.20x = 11,031,948,492.80
  5. Step 5: Solve for x
    x = 11,031,948,492.80/137,750.20
  6. Step 6: Final answer
    x = 80,086.62

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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.