Home / 148,986.36-205,583.94-85,320.36

Finding the Fourth Proportional to 148,986.36, 205,583.94 and 85,320.36

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Solution

The fourth proportional to 148,986.36, 205,583.94 and 85,320.36 is: 117,732.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,986.36 : 205,583.94 = 85,320.36 : x
  2. Step 2: Convert to fraction form
    148,986.36/205,583.94 = 85,320.36/x
  3. Step 3: Cross multiply
    148,986.36x = 205,583.94 × 85,320.36
  4. Step 4: Simplify right side
    148,986.36x = 17,540,495,771.02
  5. Step 5: Solve for x
    x = 17,540,495,771.02/148,986.36
  6. Step 6: Final answer
    x = 117,732.23

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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.