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Finding the Fourth Proportional to 162,039.40, 243,059.10 and 43,722.70

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Solution

The fourth proportional to 162,039.40, 243,059.10 and 43,722.70 is: 65,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,039.40 : 243,059.10 = 43,722.70 : x
  2. Step 2: Convert to fraction form
    162,039.40/243,059.10 = 43,722.70/x
  3. Step 3: Cross multiply
    162,039.40x = 243,059.10 × 43,722.70
  4. Step 4: Simplify right side
    162,039.40x = 10,627,200,111.57
  5. Step 5: Solve for x
    x = 10,627,200,111.57/162,039.40
  6. Step 6: Final answer
    x = 65,584.05

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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.