Home / 133,997.76-200,733.93-77,719.68

Finding the Fourth Proportional to 133,997.76, 200,733.93 and 77,719.68

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Solution

The fourth proportional to 133,997.76, 200,733.93 and 77,719.68 is: 116,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,997.76 : 200,733.93 = 77,719.68 : x
  2. Step 2: Convert to fraction form
    133,997.76/200,733.93 = 77,719.68/x
  3. Step 3: Cross multiply
    133,997.76x = 200,733.93 × 77,719.68
  4. Step 4: Simplify right side
    133,997.76x = 15,600,976,804.74
  5. Step 5: Solve for x
    x = 15,600,976,804.74/133,997.76
  6. Step 6: Final answer
    x = 116,427.15

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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.