Home / 101,623.20-152,379.81-80,697.86

Finding the Fourth Proportional to 101,623.20, 152,379.81 and 80,697.86

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Solution

The fourth proportional to 101,623.20, 152,379.81 and 80,697.86 is: 121,003.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,623.20 : 152,379.81 = 80,697.86 : x
  2. Step 2: Convert to fraction form
    101,623.20/152,379.81 = 80,697.86/x
  3. Step 3: Cross multiply
    101,623.20x = 152,379.81 × 80,697.86
  4. Step 4: Simplify right side
    101,623.20x = 12,296,724,574.21
  5. Step 5: Solve for x
    x = 12,296,724,574.21/101,623.20
  6. Step 6: Final answer
    x = 121,003.12

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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.