Home / 185,928.30-278,564.40-115,725.60

Finding the Fourth Proportional to 185,928.30, 278,564.40 and 115,725.60

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Solution

The fourth proportional to 185,928.30, 278,564.40 and 115,725.60 is: 173,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,928.30 : 278,564.40 = 115,725.60 : x
  2. Step 2: Convert to fraction form
    185,928.30/278,564.40 = 115,725.60/x
  3. Step 3: Cross multiply
    185,928.30x = 278,564.40 × 115,725.60
  4. Step 4: Simplify right side
    185,928.30x = 32,237,032,328.64
  5. Step 5: Solve for x
    x = 32,237,032,328.64/185,928.30
  6. Step 6: Final answer
    x = 173,384.21

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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.