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Finding the Fourth Proportional to 132,654.90, 183,059.52 and 78,927.60

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Solution

The fourth proportional to 132,654.90, 183,059.52 and 78,927.60 is: 108,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,654.90 : 183,059.52 = 78,927.60 : x
  2. Step 2: Convert to fraction form
    132,654.90/183,059.52 = 78,927.60/x
  3. Step 3: Cross multiply
    132,654.90x = 183,059.52 × 78,927.60
  4. Step 4: Simplify right side
    132,654.90x = 14,448,448,570.75
  5. Step 5: Solve for x
    x = 14,448,448,570.75/132,654.90
  6. Step 6: Final answer
    x = 108,917.56

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1.5x scale

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.