Home / 157,049.80-235,488.30-68,288.20

Finding the Fourth Proportional to 157,049.80, 235,488.30 and 68,288.20

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Solution

The fourth proportional to 157,049.80, 235,488.30 and 68,288.20 is: 102,394.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,049.80 : 235,488.30 = 68,288.20 : x
  2. Step 2: Convert to fraction form
    157,049.80/235,488.30 = 68,288.20/x
  3. Step 3: Cross multiply
    157,049.80x = 235,488.30 × 68,288.20
  4. Step 4: Simplify right side
    157,049.80x = 16,081,072,128.06
  5. Step 5: Solve for x
    x = 16,081,072,128.06/157,049.80
  6. Step 6: Final answer
    x = 102,394.73

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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.