Home / 109,283.05-163,928.67-38,191.78

Finding the Fourth Proportional to 109,283.05, 163,928.67 and 38,191.78

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Solution

The fourth proportional to 109,283.05, 163,928.67 and 38,191.78 is: 57,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,283.05 : 163,928.67 = 38,191.78 : x
  2. Step 2: Convert to fraction form
    109,283.05/163,928.67 = 38,191.78/x
  3. Step 3: Cross multiply
    109,283.05x = 163,928.67 × 38,191.78
  4. Step 4: Simplify right side
    109,283.05x = 6,260,727,700.33
  5. Step 5: Solve for x
    x = 6,260,727,700.33/109,283.05
  6. Step 6: Final answer
    x = 57,289.10

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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.