Home / 104,868.78-144,720.18-57,122.52

Finding the Fourth Proportional to 104,868.78, 144,720.18 and 57,122.52

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Solution

The fourth proportional to 104,868.78, 144,720.18 and 57,122.52 is: 78,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,868.78 : 144,720.18 = 57,122.52 : x
  2. Step 2: Convert to fraction form
    104,868.78/144,720.18 = 57,122.52/x
  3. Step 3: Cross multiply
    104,868.78x = 144,720.18 × 57,122.52
  4. Step 4: Simplify right side
    104,868.78x = 8,266,781,376.45
  5. Step 5: Solve for x
    x = 8,266,781,376.45/104,868.78
  6. Step 6: Final answer
    x = 78,829.77

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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.