Home / 213,827.66-320,989.95-125,144.81

Finding the Fourth Proportional to 213,827.66, 320,989.95 and 125,144.81

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Solution

The fourth proportional to 213,827.66, 320,989.95 and 125,144.81 is: 187,862.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,827.66 : 320,989.95 = 125,144.81 : x
  2. Step 2: Convert to fraction form
    213,827.66/320,989.95 = 125,144.81/x
  3. Step 3: Cross multiply
    213,827.66x = 320,989.95 × 125,144.81
  4. Step 4: Simplify right side
    213,827.66x = 40,170,226,304.66
  5. Step 5: Solve for x
    x = 40,170,226,304.66/213,827.66
  6. Step 6: Final answer
    x = 187,862.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.