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Finding the Fourth Proportional to 104,480, 156,719.66 and 37,920.04

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Solution

The fourth proportional to 104,480, 156,719.66 and 37,920.04 is: 56,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,480 : 156,719.66 = 37,920.04 : x
  2. Step 2: Convert to fraction form
    104,480/156,719.66 = 37,920.04/x
  3. Step 3: Cross multiply
    104,480x = 156,719.66 × 37,920.04
  4. Step 4: Simplify right side
    104,480x = 5,942,815,775.99
  5. Step 5: Solve for x
    x = 5,942,815,775.99/104,480
  6. Step 6: Final answer
    x = 56,879.94

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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.