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Finding the Fourth Proportional to 108,744.20, 163,067.70 and 42,162.20

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Solution

The fourth proportional to 108,744.20, 163,067.70 and 42,162.20 is: 63,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,744.20 : 163,067.70 = 42,162.20 : x
  2. Step 2: Convert to fraction form
    108,744.20/163,067.70 = 42,162.20/x
  3. Step 3: Cross multiply
    108,744.20x = 163,067.70 × 42,162.20
  4. Step 4: Simplify right side
    108,744.20x = 6,875,292,980.94
  5. Step 5: Solve for x
    x = 6,875,292,980.94/108,744.20
  6. Step 6: Final answer
    x = 63,224.46

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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.