Home / 104,899.78-144,759.86-57,153.47

Finding the Fourth Proportional to 104,899.78, 144,759.86 and 57,153.47

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Solution

The fourth proportional to 104,899.78, 144,759.86 and 57,153.47 is: 78,870.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,899.78 : 144,759.86 = 57,153.47 : x
  2. Step 2: Convert to fraction form
    104,899.78/144,759.86 = 57,153.47/x
  3. Step 3: Cross multiply
    104,899.78x = 144,759.86 × 57,153.47
  4. Step 4: Simplify right side
    104,899.78x = 8,273,527,520.47
  5. Step 5: Solve for x
    x = 8,273,527,520.47/104,899.78
  6. Step 6: Final answer
    x = 78,870.78

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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.