Home / 104,890.32-144,747.84-57,143.52

Finding the Fourth Proportional to 104,890.32, 144,747.84 and 57,143.52

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Solution

The fourth proportional to 104,890.32, 144,747.84 and 57,143.52 is: 78,857.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,890.32 : 144,747.84 = 57,143.52 : x
  2. Step 2: Convert to fraction form
    104,890.32/144,747.84 = 57,143.52/x
  3. Step 3: Cross multiply
    104,890.32x = 144,747.84 × 57,143.52
  4. Step 4: Simplify right side
    104,890.32x = 8,271,401,090.00
  5. Step 5: Solve for x
    x = 8,271,401,090.00/104,890.32
  6. Step 6: Final answer
    x = 78,857.62

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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.