Home / 145,588.58-200,912.15-81,926.43

Finding the Fourth Proportional to 145,588.58, 200,912.15 and 81,926.43

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Solution

The fourth proportional to 145,588.58, 200,912.15 and 81,926.43 is: 113,058.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,588.58 : 200,912.15 = 81,926.43 : x
  2. Step 2: Convert to fraction form
    145,588.58/200,912.15 = 81,926.43/x
  3. Step 3: Cross multiply
    145,588.58x = 200,912.15 × 81,926.43
  4. Step 4: Simplify right side
    145,588.58x = 16,460,014,783.49
  5. Step 5: Solve for x
    x = 16,460,014,783.49/145,588.58
  6. Step 6: Final answer
    x = 113,058.42

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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.