Home / 104,811.29-144,639.20-57,064.62

Finding the Fourth Proportional to 104,811.29, 144,639.20 and 57,064.62

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Solution

The fourth proportional to 104,811.29, 144,639.20 and 57,064.62 is: 78,748.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,811.29 : 144,639.20 = 57,064.62 : x
  2. Step 2: Convert to fraction form
    104,811.29/144,639.20 = 57,064.62/x
  3. Step 3: Cross multiply
    104,811.29x = 144,639.20 × 57,064.62
  4. Step 4: Simplify right side
    104,811.29x = 8,253,780,699.78
  5. Step 5: Solve for x
    x = 8,253,780,699.78/104,811.29
  6. Step 6: Final answer
    x = 78,748.97

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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.