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Finding the Fourth Proportional to 105,693.40, 158,540.10 and 26,810.20

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Solution

The fourth proportional to 105,693.40, 158,540.10 and 26,810.20 is: 40,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,693.40 : 158,540.10 = 26,810.20 : x
  2. Step 2: Convert to fraction form
    105,693.40/158,540.10 = 26,810.20/x
  3. Step 3: Cross multiply
    105,693.40x = 158,540.10 × 26,810.20
  4. Step 4: Simplify right side
    105,693.40x = 4,250,491,789.02
  5. Step 5: Solve for x
    x = 4,250,491,789.02/105,693.40
  6. Step 6: Final answer
    x = 40,215.30

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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.