Home / 124,784.39-172,202.08-68,195.77

Finding the Fourth Proportional to 124,784.39, 172,202.08 and 68,195.77

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Solution

The fourth proportional to 124,784.39, 172,202.08 and 68,195.77 is: 94,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,784.39 : 172,202.08 = 68,195.77 : x
  2. Step 2: Convert to fraction form
    124,784.39/172,202.08 = 68,195.77/x
  3. Step 3: Cross multiply
    124,784.39x = 172,202.08 × 68,195.77
  4. Step 4: Simplify right side
    124,784.39x = 11,743,453,441.20
  5. Step 5: Solve for x
    x = 11,743,453,441.20/124,784.39
  6. Step 6: Final answer
    x = 94,109.96

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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.