Home / 101,218.83-151,921.53-51,333.90

Finding the Fourth Proportional to 101,218.83, 151,921.53 and 51,333.90

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Solution

The fourth proportional to 101,218.83, 151,921.53 and 51,333.90 is: 77,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,218.83 : 151,921.53 = 51,333.90 : x
  2. Step 2: Convert to fraction form
    101,218.83/151,921.53 = 51,333.90/x
  3. Step 3: Cross multiply
    101,218.83x = 151,921.53 × 51,333.90
  4. Step 4: Simplify right side
    101,218.83x = 7,798,724,628.87
  5. Step 5: Solve for x
    x = 7,798,724,628.87/101,218.83
  6. Step 6: Final answer
    x = 77,048.16

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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.