Home / 123,768.36-170,795.34-67,178.52

Finding the Fourth Proportional to 123,768.36, 170,795.34 and 67,178.52

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Solution

The fourth proportional to 123,768.36, 170,795.34 and 67,178.52 is: 92,703.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,768.36 : 170,795.34 = 67,178.52 : x
  2. Step 2: Convert to fraction form
    123,768.36/170,795.34 = 67,178.52/x
  3. Step 3: Cross multiply
    123,768.36x = 170,795.34 × 67,178.52
  4. Step 4: Simplify right side
    123,768.36x = 11,473,778,164.10
  5. Step 5: Solve for x
    x = 11,473,778,164.10/123,768.36
  6. Step 6: Final answer
    x = 92,703.65

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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.