Home / 199,717.16-275,140.88-139,177.76

Finding the Fourth Proportional to 199,717.16, 275,140.88 and 139,177.76

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Solution

The fourth proportional to 199,717.16, 275,140.88 and 139,177.76 is: 191,738.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,717.16 : 275,140.88 = 139,177.76 : x
  2. Step 2: Convert to fraction form
    199,717.16/275,140.88 = 139,177.76/x
  3. Step 3: Cross multiply
    199,717.16x = 275,140.88 × 139,177.76
  4. Step 4: Simplify right side
    199,717.16x = 38,293,491,362.83
  5. Step 5: Solve for x
    x = 38,293,491,362.83/199,717.16
  6. Step 6: Final answer
    x = 191,738.61

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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.