Home / 101,650.18-151,892.78-77,501.68

Finding the Fourth Proportional to 101,650.18, 151,892.78 and 77,501.68

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Solution

The fourth proportional to 101,650.18, 151,892.78 and 77,501.68 is: 115,808.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,650.18 : 151,892.78 = 77,501.68 : x
  2. Step 2: Convert to fraction form
    101,650.18/151,892.78 = 77,501.68/x
  3. Step 3: Cross multiply
    101,650.18x = 151,892.78 × 77,501.68
  4. Step 4: Simplify right side
    101,650.18x = 11,771,945,629.87
  5. Step 5: Solve for x
    x = 11,771,945,629.87/101,650.18
  6. Step 6: Final answer
    x = 115,808.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.