Home / 120,315.43-166,033.28-66,599.29

Finding the Fourth Proportional to 120,315.43, 166,033.28 and 66,599.29

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Solution

The fourth proportional to 120,315.43, 166,033.28 and 66,599.29 is: 91,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,315.43 : 166,033.28 = 66,599.29 : x
  2. Step 2: Convert to fraction form
    120,315.43/166,033.28 = 66,599.29/x
  3. Step 3: Cross multiply
    120,315.43x = 166,033.28 × 66,599.29
  4. Step 4: Simplify right side
    120,315.43x = 11,057,697,816.29
  5. Step 5: Solve for x
    x = 11,057,697,816.29/120,315.43
  6. Step 6: Final answer
    x = 91,905.90

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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.