Home / 104,257.06-143,760.63-77,449.30

Finding the Fourth Proportional to 104,257.06, 143,760.63 and 77,449.30

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Solution

The fourth proportional to 104,257.06, 143,760.63 and 77,449.30 is: 106,795.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,257.06 : 143,760.63 = 77,449.30 : x
  2. Step 2: Convert to fraction form
    104,257.06/143,760.63 = 77,449.30/x
  3. Step 3: Cross multiply
    104,257.06x = 143,760.63 × 77,449.30
  4. Step 4: Simplify right side
    104,257.06x = 11,134,160,161.06
  5. Step 5: Solve for x
    x = 11,134,160,161.06/104,257.06
  6. Step 6: Final answer
    x = 106,795.26

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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.