Home / 161,519.60-242,362.79-77,262.70

Finding the Fourth Proportional to 161,519.60, 242,362.79 and 77,262.70

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Solution

The fourth proportional to 161,519.60, 242,362.79 and 77,262.70 is: 115,933.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,519.60 : 242,362.79 = 77,262.70 : x
  2. Step 2: Convert to fraction form
    161,519.60/242,362.79 = 77,262.70/x
  3. Step 3: Cross multiply
    161,519.60x = 242,362.79 × 77,262.70
  4. Step 4: Simplify right side
    161,519.60x = 18,725,603,148.62
  5. Step 5: Solve for x
    x = 18,725,603,148.62/161,519.60
  6. Step 6: Final answer
    x = 115,933.94

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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.