Home / 125,309.64-172,927.53-68,721.42

Finding the Fourth Proportional to 125,309.64, 172,927.53 and 68,721.42

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Solution

The fourth proportional to 125,309.64, 172,927.53 and 68,721.42 is: 94,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,309.64 : 172,927.53 = 68,721.42 : x
  2. Step 2: Convert to fraction form
    125,309.64/172,927.53 = 68,721.42/x
  3. Step 3: Cross multiply
    125,309.64x = 172,927.53 × 68,721.42
  4. Step 4: Simplify right side
    125,309.64x = 11,883,825,418.69
  5. Step 5: Solve for x
    x = 11,883,825,418.69/125,309.64
  6. Step 6: Final answer
    x = 94,835.68

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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.