Home / 262,670.40-394,032.96-85,170.24

Finding the Fourth Proportional to 262,670.40, 394,032.96 and 85,170.24

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Solution

The fourth proportional to 262,670.40, 394,032.96 and 85,170.24 is: 127,764.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,670.40 : 394,032.96 = 85,170.24 : x
  2. Step 2: Convert to fraction form
    262,670.40/394,032.96 = 85,170.24/x
  3. Step 3: Cross multiply
    262,670.40x = 394,032.96 × 85,170.24
  4. Step 4: Simplify right side
    262,670.40x = 33,559,881,771.11
  5. Step 5: Solve for x
    x = 33,559,881,771.11/262,670.40
  6. Step 6: Final answer
    x = 127,764.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.