Home / 195,086.81-292,689.21-138,270.61

Finding the Fourth Proportional to 195,086.81, 292,689.21 and 138,270.61

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Solution

The fourth proportional to 195,086.81, 292,689.21 and 138,270.61 is: 207,447.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,086.81 : 292,689.21 = 138,270.61 : x
  2. Step 2: Convert to fraction form
    195,086.81/292,689.21 = 138,270.61/x
  3. Step 3: Cross multiply
    195,086.81x = 292,689.21 × 138,270.61
  4. Step 4: Simplify right side
    195,086.81x = 40,470,316,491.49
  5. Step 5: Solve for x
    x = 40,470,316,491.49/195,086.81
  6. Step 6: Final answer
    x = 207,447.73

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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.