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Finding the Fourth Proportional to 104,630.15, 144,388 and 56,883.08

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Solution

The fourth proportional to 104,630.15, 144,388 and 56,883.08 is: 78,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,630.15 : 144,388 = 56,883.08 : x
  2. Step 2: Convert to fraction form
    104,630.15/144,388 = 56,883.08/x
  3. Step 3: Cross multiply
    104,630.15x = 144,388 × 56,883.08
  4. Step 4: Simplify right side
    104,630.15x = 8,213,234,155.04
  5. Step 5: Solve for x
    x = 8,213,234,155.04/104,630.15
  6. Step 6: Final answer
    x = 78,497.78

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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.