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Finding the Fourth Proportional to 111,026.60, 166,482.30 and 40,869.80

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Solution

The fourth proportional to 111,026.60, 166,482.30 and 40,869.80 is: 61,283.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,026.60 : 166,482.30 = 40,869.80 : x
  2. Step 2: Convert to fraction form
    111,026.60/166,482.30 = 40,869.80/x
  3. Step 3: Cross multiply
    111,026.60x = 166,482.30 × 40,869.80
  4. Step 4: Simplify right side
    111,026.60x = 6,804,098,304.54
  5. Step 5: Solve for x
    x = 6,804,098,304.54/111,026.60
  6. Step 6: Final answer
    x = 61,283.50

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Why These Related Problems?

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