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Finding the Fourth Proportional to 126,043.60, 188,911.80 and 55,848.40

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Solution

The fourth proportional to 126,043.60, 188,911.80 and 55,848.40 is: 83,704.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,043.60 : 188,911.80 = 55,848.40 : x
  2. Step 2: Convert to fraction form
    126,043.60/188,911.80 = 55,848.40/x
  3. Step 3: Cross multiply
    126,043.60x = 188,911.80 × 55,848.40
  4. Step 4: Simplify right side
    126,043.60x = 10,550,421,771.12
  5. Step 5: Solve for x
    x = 10,550,421,771.12/126,043.60
  6. Step 6: Final answer
    x = 83,704.54

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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.