Home / 100,091.40-138,112.51-59,796.63

Finding the Fourth Proportional to 100,091.40, 138,112.51 and 59,796.63

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Solution

The fourth proportional to 100,091.40, 138,112.51 and 59,796.63 is: 82,511.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,091.40 : 138,112.51 = 59,796.63 : x
  2. Step 2: Convert to fraction form
    100,091.40/138,112.51 = 59,796.63/x
  3. Step 3: Cross multiply
    100,091.40x = 138,112.51 × 59,796.63
  4. Step 4: Simplify right side
    100,091.40x = 8,258,662,658.84
  5. Step 5: Solve for x
    x = 8,258,662,658.84/100,091.40
  6. Step 6: Final answer
    x = 82,511.21

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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.