Home / 99,424.48-137,201.60-54,102.64

Finding the Fourth Proportional to 99,424.48, 137,201.60 and 54,102.64

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Solution

The fourth proportional to 99,424.48, 137,201.60 and 54,102.64 is: 74,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,424.48 : 137,201.60 = 54,102.64 : x
  2. Step 2: Convert to fraction form
    99,424.48/137,201.60 = 54,102.64/x
  3. Step 3: Cross multiply
    99,424.48x = 137,201.60 × 54,102.64
  4. Step 4: Simplify right side
    99,424.48x = 7,422,968,772.22
  5. Step 5: Solve for x
    x = 7,422,968,772.22/99,424.48
  6. Step 6: Final answer
    x = 74,659.37

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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.