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Finding the Fourth Proportional to 133,050.68, 183,605.38 and 79,308

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Solution

The fourth proportional to 133,050.68, 183,605.38 and 79,308 is: 109,442.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,050.68 : 183,605.38 = 79,308 : x
  2. Step 2: Convert to fraction form
    133,050.68/183,605.38 = 79,308/x
  3. Step 3: Cross multiply
    133,050.68x = 183,605.38 × 79,308
  4. Step 4: Simplify right side
    133,050.68x = 14,561,375,477.04
  5. Step 5: Solve for x
    x = 14,561,375,477.04/133,050.68
  6. Step 6: Final answer
    x = 109,442.32

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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.