Home / 115,417.22-159,093.81-85,105.46

Finding the Fourth Proportional to 115,417.22, 159,093.81 and 85,105.46

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Solution

The fourth proportional to 115,417.22, 159,093.81 and 85,105.46 is: 117,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,417.22 : 159,093.81 = 85,105.46 : x
  2. Step 2: Convert to fraction form
    115,417.22/159,093.81 = 85,105.46/x
  3. Step 3: Cross multiply
    115,417.22x = 159,093.81 × 85,105.46
  4. Step 4: Simplify right side
    115,417.22x = 13,539,751,883.20
  5. Step 5: Solve for x
    x = 13,539,751,883.20/115,417.22
  6. Step 6: Final answer
    x = 117,311.37

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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.