Home / 106,457.30-159,685.97-43,311.78

Finding the Fourth Proportional to 106,457.30, 159,685.97 and 43,311.78

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Solution

The fourth proportional to 106,457.30, 159,685.97 and 43,311.78 is: 64,967.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,457.30 : 159,685.97 = 43,311.78 : x
  2. Step 2: Convert to fraction form
    106,457.30/159,685.97 = 43,311.78/x
  3. Step 3: Cross multiply
    106,457.30x = 159,685.97 × 43,311.78
  4. Step 4: Simplify right side
    106,457.30x = 6,916,283,385.17
  5. Step 5: Solve for x
    x = 6,916,283,385.17/106,457.30
  6. Step 6: Final answer
    x = 64,967.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.