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Finding the Fourth Proportional to 104,886.10, 144,742.98 and 57,138.22

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Solution

The fourth proportional to 104,886.10, 144,742.98 and 57,138.22 is: 78,850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,886.10 : 144,742.98 = 57,138.22 : x
  2. Step 2: Convert to fraction form
    104,886.10/144,742.98 = 57,138.22/x
  3. Step 3: Cross multiply
    104,886.10x = 144,742.98 × 57,138.22
  4. Step 4: Simplify right side
    104,886.10x = 8,270,356,234.70
  5. Step 5: Solve for x
    x = 8,270,356,234.70/104,886.10
  6. Step 6: Final answer
    x = 78,850.83

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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.