Home / 106,769.53-147,172.30-84,072.52

Finding the Fourth Proportional to 106,769.53, 147,172.30 and 84,072.52

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Solution

The fourth proportional to 106,769.53, 147,172.30 and 84,072.52 is: 115,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,769.53 : 147,172.30 = 84,072.52 : x
  2. Step 2: Convert to fraction form
    106,769.53/147,172.30 = 84,072.52/x
  3. Step 3: Cross multiply
    106,769.53x = 147,172.30 × 84,072.52
  4. Step 4: Simplify right side
    106,769.53x = 12,373,146,135.20
  5. Step 5: Solve for x
    x = 12,373,146,135.20/106,769.53
  6. Step 6: Final answer
    x = 115,886.49

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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.