Home / 104,890.36-144,748.30-57,143.56

Finding the Fourth Proportional to 104,890.36, 144,748.30 and 57,143.56

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Solution

The fourth proportional to 104,890.36, 144,748.30 and 57,143.56 is: 78,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,890.36 : 144,748.30 = 57,143.56 : x
  2. Step 2: Convert to fraction form
    104,890.36/144,748.30 = 57,143.56/x
  3. Step 3: Cross multiply
    104,890.36x = 144,748.30 × 57,143.56
  4. Step 4: Simplify right side
    104,890.36x = 8,271,433,165.95
  5. Step 5: Solve for x
    x = 8,271,433,165.95/104,890.36
  6. Step 6: Final answer
    x = 78,857.90

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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.