Home / 104,359.24-143,816.88-102,439.81

Finding the Fourth Proportional to 104,359.24, 143,816.88 and 102,439.81

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Solution

The fourth proportional to 104,359.24, 143,816.88 and 102,439.81 is: 141,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,359.24 : 143,816.88 = 102,439.81 : x
  2. Step 2: Convert to fraction form
    104,359.24/143,816.88 = 102,439.81/x
  3. Step 3: Cross multiply
    104,359.24x = 143,816.88 × 102,439.81
  4. Step 4: Simplify right side
    104,359.24x = 14,732,573,861.99
  5. Step 5: Solve for x
    x = 14,732,573,861.99/104,359.24
  6. Step 6: Final answer
    x = 141,171.72

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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.