Home / 186,533.20-279,864.60-81,427.60

Finding the Fourth Proportional to 186,533.20, 279,864.60 and 81,427.60

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Solution

The fourth proportional to 186,533.20, 279,864.60 and 81,427.60 is: 122,169.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,533.20 : 279,864.60 = 81,427.60 : x
  2. Step 2: Convert to fraction form
    186,533.20/279,864.60 = 81,427.60/x
  3. Step 3: Cross multiply
    186,533.20x = 279,864.60 × 81,427.60
  4. Step 4: Simplify right side
    186,533.20x = 22,788,702,702.96
  5. Step 5: Solve for x
    x = 22,788,702,702.96/186,533.20
  6. Step 6: Final answer
    x = 122,169.69

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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.