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Finding the Fourth Proportional to 114,238.92, 157,638.34 and 66,498.60

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Solution

The fourth proportional to 114,238.92, 157,638.34 and 66,498.60 is: 91,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,238.92 : 157,638.34 = 66,498.60 : x
  2. Step 2: Convert to fraction form
    114,238.92/157,638.34 = 66,498.60/x
  3. Step 3: Cross multiply
    114,238.92x = 157,638.34 × 66,498.60
  4. Step 4: Simplify right side
    114,238.92x = 10,482,728,916.32
  5. Step 5: Solve for x
    x = 10,482,728,916.32/114,238.92
  6. Step 6: Final answer
    x = 91,761.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.