Home / 125,144.22-172,697.64-67,782.11

Finding the Fourth Proportional to 125,144.22, 172,697.64 and 67,782.11

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Solution

The fourth proportional to 125,144.22, 172,697.64 and 67,782.11 is: 93,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,144.22 : 172,697.64 = 67,782.11 : x
  2. Step 2: Convert to fraction form
    125,144.22/172,697.64 = 67,782.11/x
  3. Step 3: Cross multiply
    125,144.22x = 172,697.64 × 67,782.11
  4. Step 4: Simplify right side
    125,144.22x = 11,705,810,431.22
  5. Step 5: Solve for x
    x = 11,705,810,431.22/125,144.22
  6. Step 6: Final answer
    x = 93,538.56

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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.