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Finding the Fourth Proportional to 148,740.59, 205,266.60 and 85,098.89

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Solution

The fourth proportional to 148,740.59, 205,266.60 and 85,098.89 is: 117,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,740.59 : 205,266.60 = 85,098.89 : x
  2. Step 2: Convert to fraction form
    148,740.59/205,266.60 = 85,098.89/x
  3. Step 3: Cross multiply
    148,740.59x = 205,266.60 × 85,098.89
  4. Step 4: Simplify right side
    148,740.59x = 17,467,958,787.74
  5. Step 5: Solve for x
    x = 17,467,958,787.74/148,740.59
  6. Step 6: Final answer
    x = 117,439.09

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1.5x scale

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.