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Finding the Fourth Proportional to 104,978.20, 157,467.30 and 92,512.30

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Solution

The fourth proportional to 104,978.20, 157,467.30 and 92,512.30 is: 138,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,978.20 : 157,467.30 = 92,512.30 : x
  2. Step 2: Convert to fraction form
    104,978.20/157,467.30 = 92,512.30/x
  3. Step 3: Cross multiply
    104,978.20x = 157,467.30 × 92,512.30
  4. Step 4: Simplify right side
    104,978.20x = 14,567,662,097.79
  5. Step 5: Solve for x
    x = 14,567,662,097.79/104,978.20
  6. Step 6: Final answer
    x = 138,768.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.