Home / 145,499.56-200,787.30-80,968.36

Finding the Fourth Proportional to 145,499.56, 200,787.30 and 80,968.36

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Solution

The fourth proportional to 145,499.56, 200,787.30 and 80,968.36 is: 111,735.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,499.56 : 200,787.30 = 80,968.36 : x
  2. Step 2: Convert to fraction form
    145,499.56/200,787.30 = 80,968.36/x
  3. Step 3: Cross multiply
    145,499.56x = 200,787.30 × 80,968.36
  4. Step 4: Simplify right side
    145,499.56x = 16,257,418,389.83
  5. Step 5: Solve for x
    x = 16,257,418,389.83/145,499.56
  6. Step 6: Final answer
    x = 111,735.17

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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.