Home / 120,828.17-166,738.23-67,116.62

Finding the Fourth Proportional to 120,828.17, 166,738.23 and 67,116.62

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Solution

The fourth proportional to 120,828.17, 166,738.23 and 67,116.62 is: 92,618.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,828.17 : 166,738.23 = 67,116.62 : x
  2. Step 2: Convert to fraction form
    120,828.17/166,738.23 = 67,116.62/x
  3. Step 3: Cross multiply
    120,828.17x = 166,738.23 × 67,116.62
  4. Step 4: Simplify right side
    120,828.17x = 11,190,905,588.69
  5. Step 5: Solve for x
    x = 11,190,905,588.69/120,828.17
  6. Step 6: Final answer
    x = 92,618.35

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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.