Home / 135,180.88-186,533.28-74,743.36

Finding the Fourth Proportional to 135,180.88, 186,533.28 and 74,743.36

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Solution

The fourth proportional to 135,180.88, 186,533.28 and 74,743.36 is: 103,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,180.88 : 186,533.28 = 74,743.36 : x
  2. Step 2: Convert to fraction form
    135,180.88/186,533.28 = 74,743.36/x
  3. Step 3: Cross multiply
    135,180.88x = 186,533.28 × 74,743.36
  4. Step 4: Simplify right side
    135,180.88x = 13,942,124,099.02
  5. Step 5: Solve for x
    x = 13,942,124,099.02/135,180.88
  6. Step 6: Final answer
    x = 103,136.81

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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.