Home / 113,733.18-170,747.58-87,456.36

Finding the Fourth Proportional to 113,733.18, 170,747.58 and 87,456.36

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Solution

The fourth proportional to 113,733.18, 170,747.58 and 87,456.36 is: 131,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,733.18 : 170,747.58 = 87,456.36 : x
  2. Step 2: Convert to fraction form
    113,733.18/170,747.58 = 87,456.36/x
  3. Step 3: Cross multiply
    113,733.18x = 170,747.58 × 87,456.36
  4. Step 4: Simplify right side
    113,733.18x = 14,932,961,825.61
  5. Step 5: Solve for x
    x = 14,932,961,825.61/113,733.18
  6. Step 6: Final answer
    x = 131,298.20

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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.