Home / 144,684.72-199,669.32-81,025.20

Finding the Fourth Proportional to 144,684.72, 199,669.32 and 81,025.20

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Solution

The fourth proportional to 144,684.72, 199,669.32 and 81,025.20 is: 111,817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,684.72 : 199,669.32 = 81,025.20 : x
  2. Step 2: Convert to fraction form
    144,684.72/199,669.32 = 81,025.20/x
  3. Step 3: Cross multiply
    144,684.72x = 199,669.32 × 81,025.20
  4. Step 4: Simplify right side
    144,684.72x = 16,178,246,586.86
  5. Step 5: Solve for x
    x = 16,178,246,586.86/144,684.72
  6. Step 6: Final answer
    x = 111,817.24

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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.