Home / 98,962.44-136,439.69-63,090.18

Finding the Fourth Proportional to 98,962.44, 136,439.69 and 63,090.18

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Solution

The fourth proportional to 98,962.44, 136,439.69 and 63,090.18 is: 86,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,962.44 : 136,439.69 = 63,090.18 : x
  2. Step 2: Convert to fraction form
    98,962.44/136,439.69 = 63,090.18/x
  3. Step 3: Cross multiply
    98,962.44x = 136,439.69 × 63,090.18
  4. Step 4: Simplify right side
    98,962.44x = 8,608,004,285.79
  5. Step 5: Solve for x
    x = 8,608,004,285.79/98,962.44
  6. Step 6: Final answer
    x = 86,982.54

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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.