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Finding the Fourth Proportional to 113,737.41, 156,988.80 and 66,006

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Solution

The fourth proportional to 113,737.41, 156,988.80 and 66,006 is: 91,106.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,737.41 : 156,988.80 = 66,006 : x
  2. Step 2: Convert to fraction form
    113,737.41/156,988.80 = 66,006/x
  3. Step 3: Cross multiply
    113,737.41x = 156,988.80 × 66,006
  4. Step 4: Simplify right side
    113,737.41x = 10,362,202,732.80
  5. Step 5: Solve for x
    x = 10,362,202,732.80/113,737.41
  6. Step 6: Final answer
    x = 91,106.37

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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.