Home / 124,764.64-172,179.45-68,179.66

Finding the Fourth Proportional to 124,764.64, 172,179.45 and 68,179.66

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Solution

The fourth proportional to 124,764.64, 172,179.45 and 68,179.66 is: 94,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,764.64 : 172,179.45 = 68,179.66 : x
  2. Step 2: Convert to fraction form
    124,764.64/172,179.45 = 68,179.66/x
  3. Step 3: Cross multiply
    124,764.64x = 172,179.45 × 68,179.66
  4. Step 4: Simplify right side
    124,764.64x = 11,739,136,359.99
  5. Step 5: Solve for x
    x = 11,739,136,359.99/124,764.64
  6. Step 6: Final answer
    x = 94,090.25

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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.