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Finding the Fourth Proportional to 113,006.48, 155,970.45 and 74,766.79

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Solution

The fourth proportional to 113,006.48, 155,970.45 and 74,766.79 is: 103,192.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,006.48 : 155,970.45 = 74,766.79 : x
  2. Step 2: Convert to fraction form
    113,006.48/155,970.45 = 74,766.79/x
  3. Step 3: Cross multiply
    113,006.48x = 155,970.45 × 74,766.79
  4. Step 4: Simplify right side
    113,006.48x = 11,661,408,727.67
  5. Step 5: Solve for x
    x = 11,661,408,727.67/113,006.48
  6. Step 6: Final answer
    x = 103,192.39

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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.