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Finding the Fourth Proportional to 104,490.81, 155,635.17 and 102,303.81

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Solution

The fourth proportional to 104,490.81, 155,635.17 and 102,303.81 is: 152,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,490.81 : 155,635.17 = 102,303.81 : x
  2. Step 2: Convert to fraction form
    104,490.81/155,635.17 = 102,303.81/x
  3. Step 3: Cross multiply
    104,490.81x = 155,635.17 × 102,303.81
  4. Step 4: Simplify right side
    104,490.81x = 15,922,070,861.00
  5. Step 5: Solve for x
    x = 15,922,070,861.00/104,490.81
  6. Step 6: Final answer
    x = 152,377.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.