Home / 102,231.04-141,082.56-56,911.36

Finding the Fourth Proportional to 102,231.04, 141,082.56 and 56,911.36

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Solution

The fourth proportional to 102,231.04, 141,082.56 and 56,911.36 is: 78,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,231.04 : 141,082.56 = 56,911.36 : x
  2. Step 2: Convert to fraction form
    102,231.04/141,082.56 = 56,911.36/x
  3. Step 3: Cross multiply
    102,231.04x = 141,082.56 × 56,911.36
  4. Step 4: Simplify right side
    102,231.04x = 8,029,200,361.88
  5. Step 5: Solve for x
    x = 8,029,200,361.88/102,231.04
  6. Step 6: Final answer
    x = 78,539.75

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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.