Home / 115,718.40-173,616.48-45,604.80

Finding the Fourth Proportional to 115,718.40, 173,616.48 and 45,604.80

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Solution

The fourth proportional to 115,718.40, 173,616.48 and 45,604.80 is: 68,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,718.40 : 173,616.48 = 45,604.80 : x
  2. Step 2: Convert to fraction form
    115,718.40/173,616.48 = 45,604.80/x
  3. Step 3: Cross multiply
    115,718.40x = 173,616.48 × 45,604.80
  4. Step 4: Simplify right side
    115,718.40x = 7,917,744,847.10
  5. Step 5: Solve for x
    x = 7,917,744,847.10/115,718.40
  6. Step 6: Final answer
    x = 68,422.52

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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.