Home / 117,136.33-161,647.45-63,420.22

Finding the Fourth Proportional to 117,136.33, 161,647.45 and 63,420.22

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Solution

The fourth proportional to 117,136.33, 161,647.45 and 63,420.22 is: 87,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,136.33 : 161,647.45 = 63,420.22 : x
  2. Step 2: Convert to fraction form
    117,136.33/161,647.45 = 63,420.22/x
  3. Step 3: Cross multiply
    117,136.33x = 161,647.45 × 63,420.22
  4. Step 4: Simplify right side
    117,136.33x = 10,251,715,975.68
  5. Step 5: Solve for x
    x = 10,251,715,975.68/117,136.33
  6. Step 6: Final answer
    x = 87,519.53

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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.