Home / 120,470.13-166,246.83-66,754.98

Finding the Fourth Proportional to 120,470.13, 166,246.83 and 66,754.98

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Solution

The fourth proportional to 120,470.13, 166,246.83 and 66,754.98 is: 92,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,470.13 : 166,246.83 = 66,754.98 : x
  2. Step 2: Convert to fraction form
    120,470.13/166,246.83 = 66,754.98/x
  3. Step 3: Cross multiply
    120,470.13x = 166,246.83 × 66,754.98
  4. Step 4: Simplify right side
    120,470.13x = 11,097,803,811.71
  5. Step 5: Solve for x
    x = 11,097,803,811.71/120,470.13
  6. Step 6: Final answer
    x = 92,120.79

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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.