Home / 149,476.51-223,725.12-81,905.50

Finding the Fourth Proportional to 149,476.51, 223,725.12 and 81,905.50

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Solution

The fourth proportional to 149,476.51, 223,725.12 and 81,905.50 is: 122,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,476.51 : 223,725.12 = 81,905.50 : x
  2. Step 2: Convert to fraction form
    149,476.51/223,725.12 = 81,905.50/x
  3. Step 3: Cross multiply
    149,476.51x = 223,725.12 × 81,905.50
  4. Step 4: Simplify right side
    149,476.51x = 18,324,317,816.16
  5. Step 5: Solve for x
    x = 18,324,317,816.16/149,476.51
  6. Step 6: Final answer
    x = 122,589.95

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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.