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Finding the Fourth Proportional to 88,389.51, 121,860.50 and 73,226.31

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Solution

The fourth proportional to 88,389.51, 121,860.50 and 73,226.31 is: 100,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,389.51 : 121,860.50 = 73,226.31 : x
  2. Step 2: Convert to fraction form
    88,389.51/121,860.50 = 73,226.31/x
  3. Step 3: Cross multiply
    88,389.51x = 121,860.50 × 73,226.31
  4. Step 4: Simplify right side
    88,389.51x = 8,923,394,383.62
  5. Step 5: Solve for x
    x = 8,923,394,383.62/88,389.51
  6. Step 6: Final answer
    x = 100,955.36

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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.