Home / 123,055.13-169,816.19-66,466.50

Finding the Fourth Proportional to 123,055.13, 169,816.19 and 66,466.50

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Solution

The fourth proportional to 123,055.13, 169,816.19 and 66,466.50 is: 91,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,055.13 : 169,816.19 = 66,466.50 : x
  2. Step 2: Convert to fraction form
    123,055.13/169,816.19 = 66,466.50/x
  3. Step 3: Cross multiply
    123,055.13x = 169,816.19 × 66,466.50
  4. Step 4: Simplify right side
    123,055.13x = 11,287,087,792.64
  5. Step 5: Solve for x
    x = 11,287,087,792.64/123,055.13
  6. Step 6: Final answer
    x = 91,723.83

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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.