Home / 123,384.17-170,270.70-66,795.54

Finding the Fourth Proportional to 123,384.17, 170,270.70 and 66,795.54

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Solution

The fourth proportional to 123,384.17, 170,270.70 and 66,795.54 is: 92,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,384.17 : 170,270.70 = 66,795.54 : x
  2. Step 2: Convert to fraction form
    123,384.17/170,270.70 = 66,795.54/x
  3. Step 3: Cross multiply
    123,384.17x = 170,270.70 × 66,795.54
  4. Step 4: Simplify right side
    123,384.17x = 11,373,323,352.68
  5. Step 5: Solve for x
    x = 11,373,323,352.68/123,384.17
  6. Step 6: Final answer
    x = 92,178.14

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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.