Home / 101,136.05-151,659.95-53,739.72

Finding the Fourth Proportional to 101,136.05, 151,659.95 and 53,739.72

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Solution

The fourth proportional to 101,136.05, 151,659.95 and 53,739.72 is: 80,586.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,136.05 : 151,659.95 = 53,739.72 : x
  2. Step 2: Convert to fraction form
    101,136.05/151,659.95 = 53,739.72/x
  3. Step 3: Cross multiply
    101,136.05x = 151,659.95 × 53,739.72
  4. Step 4: Simplify right side
    101,136.05x = 8,150,162,979.52
  5. Step 5: Solve for x
    x = 8,150,162,979.52/101,136.05
  6. Step 6: Final answer
    x = 80,586.14

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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.