Home / 100,108.62-138,145.86-59,844.60

Finding the Fourth Proportional to 100,108.62, 138,145.86 and 59,844.60

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Solution

The fourth proportional to 100,108.62, 138,145.86 and 59,844.60 is: 82,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,108.62 : 138,145.86 = 59,844.60 : x
  2. Step 2: Convert to fraction form
    100,108.62/138,145.86 = 59,844.60/x
  3. Step 3: Cross multiply
    100,108.62x = 138,145.86 × 59,844.60
  4. Step 4: Simplify right side
    100,108.62x = 8,267,283,733.36
  5. Step 5: Solve for x
    x = 8,267,283,733.36/100,108.62
  6. Step 6: Final answer
    x = 82,583.14

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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.