Home / 109,378.37-164,081.24-42,809.87

Finding the Fourth Proportional to 109,378.37, 164,081.24 and 42,809.87

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Solution

The fourth proportional to 109,378.37, 164,081.24 and 42,809.87 is: 64,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,378.37 : 164,081.24 = 42,809.87 : x
  2. Step 2: Convert to fraction form
    109,378.37/164,081.24 = 42,809.87/x
  3. Step 3: Cross multiply
    109,378.37x = 164,081.24 × 42,809.87
  4. Step 4: Simplify right side
    109,378.37x = 7,024,296,553.84
  5. Step 5: Solve for x
    x = 7,024,296,553.84/109,378.37
  6. Step 6: Final answer
    x = 64,220.16

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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.