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Finding the Fourth Proportional to 117,478.40, 176,237.48 and 40,520.48

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Solution

The fourth proportional to 117,478.40, 176,237.48 and 40,520.48 is: 60,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.40 : 176,237.48 = 40,520.48 : x
  2. Step 2: Convert to fraction form
    117,478.40/176,237.48 = 40,520.48/x
  3. Step 3: Cross multiply
    117,478.40x = 176,237.48 × 40,520.48
  4. Step 4: Simplify right side
    117,478.40x = 7,141,227,283.59
  5. Step 5: Solve for x
    x = 7,141,227,283.59/117,478.40
  6. Step 6: Final answer
    x = 60,787.58

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