Home / 104,440.78-144,128.38-56,694.10

Finding the Fourth Proportional to 104,440.78, 144,128.38 and 56,694.10

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Solution

The fourth proportional to 104,440.78, 144,128.38 and 56,694.10 is: 78,237.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,440.78 : 144,128.38 = 56,694.10 : x
  2. Step 2: Convert to fraction form
    104,440.78/144,128.38 = 56,694.10/x
  3. Step 3: Cross multiply
    104,440.78x = 144,128.38 × 56,694.10
  4. Step 4: Simplify right side
    104,440.78x = 8,171,228,788.56
  5. Step 5: Solve for x
    x = 8,171,228,788.56/104,440.78
  6. Step 6: Final answer
    x = 78,237.91

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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.