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Finding the Fourth Proportional to 162,745, 244,117.55 and 78,489.48

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Solution

The fourth proportional to 162,745, 244,117.55 and 78,489.48 is: 117,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,745 : 244,117.55 = 78,489.48 : x
  2. Step 2: Convert to fraction form
    162,745/244,117.55 = 78,489.48/x
  3. Step 3: Cross multiply
    162,745x = 244,117.55 × 78,489.48
  4. Step 4: Simplify right side
    162,745x = 19,160,659,558.37
  5. Step 5: Solve for x
    x = 19,160,659,558.37/162,745
  6. Step 6: Final answer
    x = 117,734.24

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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.