Home / 109,170.72-163,784.70-34,287.84

Finding the Fourth Proportional to 109,170.72, 163,784.70 and 34,287.84

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Solution

The fourth proportional to 109,170.72, 163,784.70 and 34,287.84 is: 51,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,170.72 : 163,784.70 = 34,287.84 : x
  2. Step 2: Convert to fraction form
    109,170.72/163,784.70 = 34,287.84/x
  3. Step 3: Cross multiply
    109,170.72x = 163,784.70 × 34,287.84
  4. Step 4: Simplify right side
    109,170.72x = 5,615,823,588.05
  5. Step 5: Solve for x
    x = 5,615,823,588.05/109,170.72
  6. Step 6: Final answer
    x = 51,440.75

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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.