Home / 87,162.86-120,311.04-75,353.06

Finding the Fourth Proportional to 87,162.86, 120,311.04 and 75,353.06

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Solution

The fourth proportional to 87,162.86, 120,311.04 and 75,353.06 is: 104,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,162.86 : 120,311.04 = 75,353.06 : x
  2. Step 2: Convert to fraction form
    87,162.86/120,311.04 = 75,353.06/x
  3. Step 3: Cross multiply
    87,162.86x = 120,311.04 × 75,353.06
  4. Step 4: Simplify right side
    87,162.86x = 9,065,804,414.23
  5. Step 5: Solve for x
    x = 9,065,804,414.23/87,162.86
  6. Step 6: Final answer
    x = 104,009.95

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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.