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Finding the Fourth Proportional to 107,160.82, 147,815.08 and 68,970.34

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Solution

The fourth proportional to 107,160.82, 147,815.08 and 68,970.34 is: 95,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,160.82 : 147,815.08 = 68,970.34 : x
  2. Step 2: Convert to fraction form
    107,160.82/147,815.08 = 68,970.34/x
  3. Step 3: Cross multiply
    107,160.82x = 147,815.08 × 68,970.34
  4. Step 4: Simplify right side
    107,160.82x = 10,194,855,505.61
  5. Step 5: Solve for x
    x = 10,194,855,505.61/107,160.82
  6. Step 6: Final answer
    x = 95,136.03

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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.