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Finding the Fourth Proportional to 123,152.43, 169,950.29 and 66,563.81

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Solution

The fourth proportional to 123,152.43, 169,950.29 and 66,563.81 is: 91,858.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,152.43 : 169,950.29 = 66,563.81 : x
  2. Step 2: Convert to fraction form
    123,152.43/169,950.29 = 66,563.81/x
  3. Step 3: Cross multiply
    123,152.43x = 169,950.29 × 66,563.81
  4. Step 4: Simplify right side
    123,152.43x = 11,312,537,630.43
  5. Step 5: Solve for x
    x = 11,312,537,630.43/123,152.43
  6. Step 6: Final answer
    x = 91,858.01

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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.