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Finding the Fourth Proportional to 109,168.68, 150,670.80 and 68,904.36

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Solution

The fourth proportional to 109,168.68, 150,670.80 and 68,904.36 is: 95,099.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,168.68 : 150,670.80 = 68,904.36 : x
  2. Step 2: Convert to fraction form
    109,168.68/150,670.80 = 68,904.36/x
  3. Step 3: Cross multiply
    109,168.68x = 150,670.80 × 68,904.36
  4. Step 4: Simplify right side
    109,168.68x = 10,381,875,044.69
  5. Step 5: Solve for x
    x = 10,381,875,044.69/109,168.68
  6. Step 6: Final answer
    x = 95,099.39

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1.5x scale

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.