Home / 100,112.98-138,142.22-59,818.18

Finding the Fourth Proportional to 100,112.98, 138,142.22 and 59,818.18

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Solution

The fourth proportional to 100,112.98, 138,142.22 and 59,818.18 is: 82,540.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,112.98 : 138,142.22 = 59,818.18 : x
  2. Step 2: Convert to fraction form
    100,112.98/138,142.22 = 59,818.18/x
  3. Step 3: Cross multiply
    100,112.98x = 138,142.22 × 59,818.18
  4. Step 4: Simplify right side
    100,112.98x = 8,263,416,181.56
  5. Step 5: Solve for x
    x = 8,263,416,181.56/100,112.98
  6. Step 6: Final answer
    x = 82,540.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.