Home / 101,136.78-151,655.25-30,999.18

Finding the Fourth Proportional to 101,136.78, 151,655.25 and 30,999.18

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Solution

The fourth proportional to 101,136.78, 151,655.25 and 30,999.18 is: 46,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,136.78 : 151,655.25 = 30,999.18 : x
  2. Step 2: Convert to fraction form
    101,136.78/151,655.25 = 30,999.18/x
  3. Step 3: Cross multiply
    101,136.78x = 151,655.25 × 30,999.18
  4. Step 4: Simplify right side
    101,136.78x = 4,701,188,392.70
  5. Step 5: Solve for x
    x = 4,701,188,392.70/101,136.78
  6. Step 6: Final answer
    x = 46,483.47

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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.