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Finding the Fourth Proportional to 123,681.60, 170,652.24 and 69,954.96

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Solution

The fourth proportional to 123,681.60, 170,652.24 and 69,954.96 is: 96,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,681.60 : 170,652.24 = 69,954.96 : x
  2. Step 2: Convert to fraction form
    123,681.60/170,652.24 = 69,954.96/x
  3. Step 3: Cross multiply
    123,681.60x = 170,652.24 × 69,954.96
  4. Step 4: Simplify right side
    123,681.60x = 11,937,970,623.11
  5. Step 5: Solve for x
    x = 11,937,970,623.11/123,681.60
  6. Step 6: Final answer
    x = 96,521.80

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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.