Home / 98,889.36-136,467.60-53,567.20

Finding the Fourth Proportional to 98,889.36, 136,467.60 and 53,567.20

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Solution

The fourth proportional to 98,889.36, 136,467.60 and 53,567.20 is: 73,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,889.36 : 136,467.60 = 53,567.20 : x
  2. Step 2: Convert to fraction form
    98,889.36/136,467.60 = 53,567.20/x
  3. Step 3: Cross multiply
    98,889.36x = 136,467.60 × 53,567.20
  4. Step 4: Simplify right side
    98,889.36x = 7,310,187,222.72
  5. Step 5: Solve for x
    x = 7,310,187,222.72/98,889.36
  6. Step 6: Final answer
    x = 73,922.89

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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.