Home / 109,136.20-163,693.20-34,256.92

Finding the Fourth Proportional to 109,136.20, 163,693.20 and 34,256.92

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Solution

The fourth proportional to 109,136.20, 163,693.20 and 34,256.92 is: 51,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,136.20 : 163,693.20 = 34,256.92 : x
  2. Step 2: Convert to fraction form
    109,136.20/163,693.20 = 34,256.92/x
  3. Step 3: Cross multiply
    109,136.20x = 163,693.20 × 34,256.92
  4. Step 4: Simplify right side
    109,136.20x = 5,607,624,856.94
  5. Step 5: Solve for x
    x = 5,607,624,856.94/109,136.20
  6. Step 6: Final answer
    x = 51,381.90

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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.