Home / 109,129.77-163,639.63-33,213.75

Finding the Fourth Proportional to 109,129.77, 163,639.63 and 33,213.75

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Solution

The fourth proportional to 109,129.77, 163,639.63 and 33,213.75 is: 49,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,129.77 : 163,639.63 = 33,213.75 : x
  2. Step 2: Convert to fraction form
    109,129.77/163,639.63 = 33,213.75/x
  3. Step 3: Cross multiply
    109,129.77x = 163,639.63 × 33,213.75
  4. Step 4: Simplify right side
    109,129.77x = 5,435,085,972.55
  5. Step 5: Solve for x
    x = 5,435,085,972.55/109,129.77
  6. Step 6: Final answer
    x = 49,803.88

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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.