Home / 208,168.20-312,028.74-89,895.24

Finding the Fourth Proportional to 208,168.20, 312,028.74 and 89,895.24

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Solution

The fourth proportional to 208,168.20, 312,028.74 and 89,895.24 is: 134,746.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,168.20 : 312,028.74 = 89,895.24 : x
  2. Step 2: Convert to fraction form
    208,168.20/312,028.74 = 89,895.24/x
  3. Step 3: Cross multiply
    208,168.20x = 312,028.74 × 89,895.24
  4. Step 4: Simplify right side
    208,168.20x = 28,049,898,469.20
  5. Step 5: Solve for x
    x = 28,049,898,469.20/208,168.20
  6. Step 6: Final answer
    x = 134,746.32

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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.