Home / 104,256.56-143,759.94-77,448.80

Finding the Fourth Proportional to 104,256.56, 143,759.94 and 77,448.80

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Solution

The fourth proportional to 104,256.56, 143,759.94 and 77,448.80 is: 106,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,256.56 : 143,759.94 = 77,448.80 : x
  2. Step 2: Convert to fraction form
    104,256.56/143,759.94 = 77,448.80/x
  3. Step 3: Cross multiply
    104,256.56x = 143,759.94 × 77,448.80
  4. Step 4: Simplify right side
    104,256.56x = 11,134,034,841.07
  5. Step 5: Solve for x
    x = 11,134,034,841.07/104,256.56
  6. Step 6: Final answer
    x = 106,794.57

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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.