Home / 104,102.72-143,661.80-56,356.06

Finding the Fourth Proportional to 104,102.72, 143,661.80 and 56,356.06

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Solution

The fourth proportional to 104,102.72, 143,661.80 and 56,356.06 is: 77,771.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,102.72 : 143,661.80 = 56,356.06 : x
  2. Step 2: Convert to fraction form
    104,102.72/143,661.80 = 56,356.06/x
  3. Step 3: Cross multiply
    104,102.72x = 143,661.80 × 56,356.06
  4. Step 4: Simplify right side
    104,102.72x = 8,096,212,738.73
  5. Step 5: Solve for x
    x = 8,096,212,738.73/104,102.72
  6. Step 6: Final answer
    x = 77,771.39

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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.