Home / 104,612.50-156,830.30-45,403.66

Finding the Fourth Proportional to 104,612.50, 156,830.30 and 45,403.66

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Solution

The fourth proportional to 104,612.50, 156,830.30 and 45,403.66 is: 68,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,612.50 : 156,830.30 = 45,403.66 : x
  2. Step 2: Convert to fraction form
    104,612.50/156,830.30 = 45,403.66/x
  3. Step 3: Cross multiply
    104,612.50x = 156,830.30 × 45,403.66
  4. Step 4: Simplify right side
    104,612.50x = 7,120,669,618.90
  5. Step 5: Solve for x
    x = 7,120,669,618.90/104,612.50
  6. Step 6: Final answer
    x = 68,067.10

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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.