Home / 115,411.85-173,057.48-52,201.78

Finding the Fourth Proportional to 115,411.85, 173,057.48 and 52,201.78

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Solution

The fourth proportional to 115,411.85, 173,057.48 and 52,201.78 is: 78,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,411.85 : 173,057.48 = 52,201.78 : x
  2. Step 2: Convert to fraction form
    115,411.85/173,057.48 = 52,201.78/x
  3. Step 3: Cross multiply
    115,411.85x = 173,057.48 × 52,201.78
  4. Step 4: Simplify right side
    115,411.85x = 9,033,908,000.42
  5. Step 5: Solve for x
    x = 9,033,908,000.42/115,411.85
  6. Step 6: Final answer
    x = 78,275.39

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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.