Home / 162,143.20-243,220.26-43,815.56

Finding the Fourth Proportional to 162,143.20, 243,220.26 and 43,815.56

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Solution

The fourth proportional to 162,143.20, 243,220.26 and 43,815.56 is: 65,724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,143.20 : 243,220.26 = 43,815.56 : x
  2. Step 2: Convert to fraction form
    162,143.20/243,220.26 = 43,815.56/x
  3. Step 3: Cross multiply
    162,143.20x = 243,220.26 × 43,815.56
  4. Step 4: Simplify right side
    162,143.20x = 10,656,831,895.25
  5. Step 5: Solve for x
    x = 10,656,831,895.25/162,143.20
  6. Step 6: Final answer
    x = 65,724.82

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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.