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Finding the Fourth Proportional to 109,287.40, 163,902.30 and 34,407.40

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Solution

The fourth proportional to 109,287.40, 163,902.30 and 34,407.40 is: 51,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,287.40 : 163,902.30 = 34,407.40 : x
  2. Step 2: Convert to fraction form
    109,287.40/163,902.30 = 34,407.40/x
  3. Step 3: Cross multiply
    109,287.40x = 163,902.30 × 34,407.40
  4. Step 4: Simplify right side
    109,287.40x = 5,639,451,997.02
  5. Step 5: Solve for x
    x = 5,639,451,997.02/109,287.40
  6. Step 6: Final answer
    x = 51,602.03

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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.