Home / 123,881.45-170,968.29-69,433.34

Finding the Fourth Proportional to 123,881.45, 170,968.29 and 69,433.34

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Solution

The fourth proportional to 123,881.45, 170,968.29 and 69,433.34 is: 95,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,881.45 : 170,968.29 = 69,433.34 : x
  2. Step 2: Convert to fraction form
    123,881.45/170,968.29 = 69,433.34/x
  3. Step 3: Cross multiply
    123,881.45x = 170,968.29 × 69,433.34
  4. Step 4: Simplify right side
    123,881.45x = 11,870,899,836.21
  5. Step 5: Solve for x
    x = 11,870,899,836.21/123,881.45
  6. Step 6: Final answer
    x = 95,824.68

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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.