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Finding the Fourth Proportional to 109,371.80, 164,057.70 and 64,975.70

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Solution

The fourth proportional to 109,371.80, 164,057.70 and 64,975.70 is: 97,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,371.80 : 164,057.70 = 64,975.70 : x
  2. Step 2: Convert to fraction form
    109,371.80/164,057.70 = 64,975.70/x
  3. Step 3: Cross multiply
    109,371.80x = 164,057.70 × 64,975.70
  4. Step 4: Simplify right side
    109,371.80x = 10,659,763,897.89
  5. Step 5: Solve for x
    x = 10,659,763,897.89/109,371.80
  6. Step 6: Final answer
    x = 97,463.55

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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.