Home / 123,769.89-170,802.81-67,181.27

Finding the Fourth Proportional to 123,769.89, 170,802.81 and 67,181.27

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Solution

The fourth proportional to 123,769.89, 170,802.81 and 67,181.27 is: 92,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,769.89 : 170,802.81 = 67,181.27 : x
  2. Step 2: Convert to fraction form
    123,769.89/170,802.81 = 67,181.27/x
  3. Step 3: Cross multiply
    123,769.89x = 170,802.81 × 67,181.27
  4. Step 4: Simplify right side
    123,769.89x = 11,474,748,841.35
  5. Step 5: Solve for x
    x = 11,474,748,841.35/123,769.89
  6. Step 6: Final answer
    x = 92,710.34

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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.