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Finding the Fourth Proportional to 163,430.87, 244,924.86 and 84,600.45

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Solution

The fourth proportional to 163,430.87, 244,924.86 and 84,600.45 is: 126,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,430.87 : 244,924.86 = 84,600.45 : x
  2. Step 2: Convert to fraction form
    163,430.87/244,924.86 = 84,600.45/x
  3. Step 3: Cross multiply
    163,430.87x = 244,924.86 × 84,600.45
  4. Step 4: Simplify right side
    163,430.87x = 20,720,753,689.44
  5. Step 5: Solve for x
    x = 20,720,753,689.44/163,430.87
  6. Step 6: Final answer
    x = 126,786.05

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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.