Home / 109,243.10-163,883.86-45,201.05

Finding the Fourth Proportional to 109,243.10, 163,883.86 and 45,201.05

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Solution

The fourth proportional to 109,243.10, 163,883.86 and 45,201.05 is: 67,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,243.10 : 163,883.86 = 45,201.05 : x
  2. Step 2: Convert to fraction form
    109,243.10/163,883.86 = 45,201.05/x
  3. Step 3: Cross multiply
    109,243.10x = 163,883.86 × 45,201.05
  4. Step 4: Simplify right side
    109,243.10x = 7,407,722,550.05
  5. Step 5: Solve for x
    x = 7,407,722,550.05/109,243.10
  6. Step 6: Final answer
    x = 67,809.53

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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.