Home / 109,410.29-164,136.03-75,359.78

Finding the Fourth Proportional to 109,410.29, 164,136.03 and 75,359.78

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Solution

The fourth proportional to 109,410.29, 164,136.03 and 75,359.78 is: 113,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,410.29 : 164,136.03 = 75,359.78 : x
  2. Step 2: Convert to fraction form
    109,410.29/164,136.03 = 75,359.78/x
  3. Step 3: Cross multiply
    109,410.29x = 164,136.03 × 75,359.78
  4. Step 4: Simplify right side
    109,410.29x = 12,369,254,734.07
  5. Step 5: Solve for x
    x = 12,369,254,734.07/109,410.29
  6. Step 6: Final answer
    x = 113,053.85

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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.