Home / 154,813.52-213,645.10-86,845.60

Finding the Fourth Proportional to 154,813.52, 213,645.10 and 86,845.60

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Solution

The fourth proportional to 154,813.52, 213,645.10 and 86,845.60 is: 119,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,813.52 : 213,645.10 = 86,845.60 : x
  2. Step 2: Convert to fraction form
    154,813.52/213,645.10 = 86,845.60/x
  3. Step 3: Cross multiply
    154,813.52x = 213,645.10 × 86,845.60
  4. Step 4: Simplify right side
    154,813.52x = 18,554,136,896.56
  5. Step 5: Solve for x
    x = 18,554,136,896.56/154,813.52
  6. Step 6: Final answer
    x = 119,848.30

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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.