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Finding the Fourth Proportional to 104,950.44, 144,830.70 and 57,203.78

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Solution

The fourth proportional to 104,950.44, 144,830.70 and 57,203.78 is: 78,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,950.44 : 144,830.70 = 57,203.78 : x
  2. Step 2: Convert to fraction form
    104,950.44/144,830.70 = 57,203.78/x
  3. Step 3: Cross multiply
    104,950.44x = 144,830.70 × 57,203.78
  4. Step 4: Simplify right side
    104,950.44x = 8,284,862,775.89
  5. Step 5: Solve for x
    x = 8,284,862,775.89/104,950.44
  6. Step 6: Final answer
    x = 78,940.72

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1.5x scale

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.