Home / 105,194.03-145,169.64-64,364.97

Finding the Fourth Proportional to 105,194.03, 145,169.64 and 64,364.97

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Solution

The fourth proportional to 105,194.03, 145,169.64 and 64,364.97 is: 88,824.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,194.03 : 145,169.64 = 64,364.97 : x
  2. Step 2: Convert to fraction form
    105,194.03/145,169.64 = 64,364.97/x
  3. Step 3: Cross multiply
    105,194.03x = 145,169.64 × 64,364.97
  4. Step 4: Simplify right side
    105,194.03x = 9,343,839,523.51
  5. Step 5: Solve for x
    x = 9,343,839,523.51/105,194.03
  6. Step 6: Final answer
    x = 88,824.81

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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.