Home / 189,986.36-285,058.01-83,315.10

Finding the Fourth Proportional to 189,986.36, 285,058.01 and 83,315.10

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Solution

The fourth proportional to 189,986.36, 285,058.01 and 83,315.10 is: 125,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,986.36 : 285,058.01 = 83,315.10 : x
  2. Step 2: Convert to fraction form
    189,986.36/285,058.01 = 83,315.10/x
  3. Step 3: Cross multiply
    189,986.36x = 285,058.01 × 83,315.10
  4. Step 4: Simplify right side
    189,986.36x = 23,749,636,817.24
  5. Step 5: Solve for x
    x = 23,749,636,817.24/189,986.36
  6. Step 6: Final answer
    x = 125,007.06

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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.