Home / 109,164.25-163,746.34-30,278.49

Finding the Fourth Proportional to 109,164.25, 163,746.34 and 30,278.49

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Solution

The fourth proportional to 109,164.25, 163,746.34 and 30,278.49 is: 45,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,164.25 : 163,746.34 = 30,278.49 : x
  2. Step 2: Convert to fraction form
    109,164.25/163,746.34 = 30,278.49/x
  3. Step 3: Cross multiply
    109,164.25x = 163,746.34 × 30,278.49
  4. Step 4: Simplify right side
    109,164.25x = 4,957,991,918.23
  5. Step 5: Solve for x
    x = 4,957,991,918.23/109,164.25
  6. Step 6: Final answer
    x = 45,417.73

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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.