Home / 123,291.53-170,132.62-75,538.39

Finding the Fourth Proportional to 123,291.53, 170,132.62 and 75,538.39

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Solution

The fourth proportional to 123,291.53, 170,132.62 and 75,538.39 is: 104,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,291.53 : 170,132.62 = 75,538.39 : x
  2. Step 2: Convert to fraction form
    123,291.53/170,132.62 = 75,538.39/x
  3. Step 3: Cross multiply
    123,291.53x = 170,132.62 × 75,538.39
  4. Step 4: Simplify right side
    123,291.53x = 12,851,543,587.10
  5. Step 5: Solve for x
    x = 12,851,543,587.10/123,291.53
  6. Step 6: Final answer
    x = 104,237.03

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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.