Home / 100,106.22-138,132.91-59,811.42

Finding the Fourth Proportional to 100,106.22, 138,132.91 and 59,811.42

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Solution

The fourth proportional to 100,106.22, 138,132.91 and 59,811.42 is: 82,531.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,106.22 : 138,132.91 = 59,811.42 : x
  2. Step 2: Convert to fraction form
    100,106.22/138,132.91 = 59,811.42/x
  3. Step 3: Cross multiply
    100,106.22x = 138,132.91 × 59,811.42
  4. Step 4: Simplify right side
    100,106.22x = 8,261,925,495.83
  5. Step 5: Solve for x
    x = 8,261,925,495.83/100,106.22
  6. Step 6: Final answer
    x = 82,531.59

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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.