Home / 120,599.19-166,437.09-66,901.50

Finding the Fourth Proportional to 120,599.19, 166,437.09 and 66,901.50

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Solution

The fourth proportional to 120,599.19, 166,437.09 and 66,901.50 is: 92,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,599.19 : 166,437.09 = 66,901.50 : x
  2. Step 2: Convert to fraction form
    120,599.19/166,437.09 = 66,901.50/x
  3. Step 3: Cross multiply
    120,599.19x = 166,437.09 × 66,901.50
  4. Step 4: Simplify right side
    120,599.19x = 11,134,890,976.64
  5. Step 5: Solve for x
    x = 11,134,890,976.64/120,599.19
  6. Step 6: Final answer
    x = 92,329.73

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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.