Home / 150,090.76-207,136.49-85,561.53

Finding the Fourth Proportional to 150,090.76, 207,136.49 and 85,561.53

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Solution

The fourth proportional to 150,090.76, 207,136.49 and 85,561.53 is: 118,081.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,090.76 : 207,136.49 = 85,561.53 : x
  2. Step 2: Convert to fraction form
    150,090.76/207,136.49 = 85,561.53/x
  3. Step 3: Cross multiply
    150,090.76x = 207,136.49 × 85,561.53
  4. Step 4: Simplify right side
    150,090.76x = 17,722,915,003.23
  5. Step 5: Solve for x
    x = 17,722,915,003.23/150,090.76
  6. Step 6: Final answer
    x = 118,081.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.