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Finding the Fourth Proportional to 120,599.58, 166,437.38 and 66,901.90

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Solution

The fourth proportional to 120,599.58, 166,437.38 and 66,901.90 is: 92,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,599.58 : 166,437.38 = 66,901.90 : x
  2. Step 2: Convert to fraction form
    120,599.58/166,437.38 = 66,901.90/x
  3. Step 3: Cross multiply
    120,599.58x = 166,437.38 × 66,901.90
  4. Step 4: Simplify right side
    120,599.58x = 11,134,976,953.02
  5. Step 5: Solve for x
    x = 11,134,976,953.02/120,599.58
  6. Step 6: Final answer
    x = 92,330.15

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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.