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Finding the Fourth Proportional to 133,071.26, 199,606.88 and 77,628.38

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Solution

The fourth proportional to 133,071.26, 199,606.88 and 77,628.38 is: 116,442.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,071.26 : 199,606.88 = 77,628.38 : x
  2. Step 2: Convert to fraction form
    133,071.26/199,606.88 = 77,628.38/x
  3. Step 3: Cross multiply
    133,071.26x = 199,606.88 × 77,628.38
  4. Step 4: Simplify right side
    133,071.26x = 15,495,157,927.29
  5. Step 5: Solve for x
    x = 15,495,157,927.29/133,071.26
  6. Step 6: Final answer
    x = 116,442.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.