Home / 123,155.16-169,954.23-66,566.53

Finding the Fourth Proportional to 123,155.16, 169,954.23 and 66,566.53

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Solution

The fourth proportional to 123,155.16, 169,954.23 and 66,566.53 is: 91,861.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,155.16 : 169,954.23 = 66,566.53 : x
  2. Step 2: Convert to fraction form
    123,155.16/169,954.23 = 66,566.53/x
  3. Step 3: Cross multiply
    123,155.16x = 169,954.23 × 66,566.53
  4. Step 4: Simplify right side
    123,155.16x = 11,313,263,349.92
  5. Step 5: Solve for x
    x = 11,313,263,349.92/123,155.16
  6. Step 6: Final answer
    x = 91,861.87

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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.