Home / 162,022.20-242,741.70-138,694.20

Finding the Fourth Proportional to 162,022.20, 242,741.70 and 138,694.20

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Solution

The fourth proportional to 162,022.20, 242,741.70 and 138,694.20 is: 207,791.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,022.20 : 242,741.70 = 138,694.20 : x
  2. Step 2: Convert to fraction form
    162,022.20/242,741.70 = 138,694.20/x
  3. Step 3: Cross multiply
    162,022.20x = 242,741.70 × 138,694.20
  4. Step 4: Simplify right side
    162,022.20x = 33,666,865,888.14
  5. Step 5: Solve for x
    x = 33,666,865,888.14/162,022.20
  6. Step 6: Final answer
    x = 207,791.68

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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.