Home / 100,334.70-138,442.37-59,491.26

Finding the Fourth Proportional to 100,334.70, 138,442.37 and 59,491.26

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Solution

The fourth proportional to 100,334.70, 138,442.37 and 59,491.26 is: 82,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,334.70 : 138,442.37 = 59,491.26 : x
  2. Step 2: Convert to fraction form
    100,334.70/138,442.37 = 59,491.26/x
  3. Step 3: Cross multiply
    100,334.70x = 138,442.37 × 59,491.26
  4. Step 4: Simplify right side
    100,334.70x = 8,236,110,731.23
  5. Step 5: Solve for x
    x = 8,236,110,731.23/100,334.70
  6. Step 6: Final answer
    x = 82,086.36

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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.