Home / 92,786.09-139,342.67-69,100.07

Finding the Fourth Proportional to 92,786.09, 139,342.67 and 69,100.07

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Solution

The fourth proportional to 92,786.09, 139,342.67 and 69,100.07 is: 103,771.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,786.09 : 139,342.67 = 69,100.07 : x
  2. Step 2: Convert to fraction form
    92,786.09/139,342.67 = 69,100.07/x
  3. Step 3: Cross multiply
    92,786.09x = 139,342.67 × 69,100.07
  4. Step 4: Simplify right side
    92,786.09x = 9,628,587,905.49
  5. Step 5: Solve for x
    x = 9,628,587,905.49/92,786.09
  6. Step 6: Final answer
    x = 103,771.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.