Home / 132,837.20-199,255.80-70,629.20

Finding the Fourth Proportional to 132,837.20, 199,255.80 and 70,629.20

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Solution

The fourth proportional to 132,837.20, 199,255.80 and 70,629.20 is: 105,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,837.20 : 199,255.80 = 70,629.20 : x
  2. Step 2: Convert to fraction form
    132,837.20/199,255.80 = 70,629.20/x
  3. Step 3: Cross multiply
    132,837.20x = 199,255.80 × 70,629.20
  4. Step 4: Simplify right side
    132,837.20x = 14,073,277,749.36
  5. Step 5: Solve for x
    x = 14,073,277,749.36/132,837.20
  6. Step 6: Final answer
    x = 105,943.80

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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.