Home / 137,399.36-189,638.75-93,908.03

Finding the Fourth Proportional to 137,399.36, 189,638.75 and 93,908.03

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Solution

The fourth proportional to 137,399.36, 189,638.75 and 93,908.03 is: 129,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,399.36 : 189,638.75 = 93,908.03 : x
  2. Step 2: Convert to fraction form
    137,399.36/189,638.75 = 93,908.03/x
  3. Step 3: Cross multiply
    137,399.36x = 189,638.75 × 93,908.03
  4. Step 4: Simplify right side
    137,399.36x = 17,808,600,954.62
  5. Step 5: Solve for x
    x = 17,808,600,954.62/137,399.36
  6. Step 6: Final answer
    x = 129,611.96

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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.