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Finding the Fourth Proportional to 122,445.61, 168,953.56 and 68,732.89

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Solution

The fourth proportional to 122,445.61, 168,953.56 and 68,732.89 is: 94,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,445.61 : 168,953.56 = 68,732.89 : x
  2. Step 2: Convert to fraction form
    122,445.61/168,953.56 = 68,732.89/x
  3. Step 3: Cross multiply
    122,445.61x = 168,953.56 × 68,732.89
  4. Step 4: Simplify right side
    122,445.61x = 11,612,666,454.59
  5. Step 5: Solve for x
    x = 11,612,666,454.59/122,445.61
  6. Step 6: Final answer
    x = 94,839.39

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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.