Home / 102,068.20-153,107.10-31,949.80

Finding the Fourth Proportional to 102,068.20, 153,107.10 and 31,949.80

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Solution

The fourth proportional to 102,068.20, 153,107.10 and 31,949.80 is: 47,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,068.20 : 153,107.10 = 31,949.80 : x
  2. Step 2: Convert to fraction form
    102,068.20/153,107.10 = 31,949.80/x
  3. Step 3: Cross multiply
    102,068.20x = 153,107.10 × 31,949.80
  4. Step 4: Simplify right side
    102,068.20x = 4,891,741,223.58
  5. Step 5: Solve for x
    x = 4,891,741,223.58/102,068.20
  6. Step 6: Final answer
    x = 47,926.20

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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.