Home / 147,761.11-203,910.16-87,353.54

Finding the Fourth Proportional to 147,761.11, 203,910.16 and 87,353.54

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Solution

The fourth proportional to 147,761.11, 203,910.16 and 87,353.54 is: 120,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,761.11 : 203,910.16 = 87,353.54 : x
  2. Step 2: Convert to fraction form
    147,761.11/203,910.16 = 87,353.54/x
  3. Step 3: Cross multiply
    147,761.11x = 203,910.16 × 87,353.54
  4. Step 4: Simplify right side
    147,761.11x = 17,812,274,008.48
  5. Step 5: Solve for x
    x = 17,812,274,008.48/147,761.11
  6. Step 6: Final answer
    x = 120,547.78

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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.