Home / 253,568.18-349,921.14-138,845.72

Finding the Fourth Proportional to 253,568.18, 349,921.14 and 138,845.72

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Solution

The fourth proportional to 253,568.18, 349,921.14 and 138,845.72 is: 191,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,568.18 : 349,921.14 = 138,845.72 : x
  2. Step 2: Convert to fraction form
    253,568.18/349,921.14 = 138,845.72/x
  3. Step 3: Cross multiply
    253,568.18x = 349,921.14 × 138,845.72
  4. Step 4: Simplify right side
    253,568.18x = 48,585,052,626.52
  5. Step 5: Solve for x
    x = 48,585,052,626.52/253,568.18
  6. Step 6: Final answer
    x = 191,605.48

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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.