Home / 109,190.77-163,790.81-38,120.56

Finding the Fourth Proportional to 109,190.77, 163,790.81 and 38,120.56

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Solution

The fourth proportional to 109,190.77, 163,790.81 and 38,120.56 is: 57,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,190.77 : 163,790.81 = 38,120.56 : x
  2. Step 2: Convert to fraction form
    109,190.77/163,790.81 = 38,120.56/x
  3. Step 3: Cross multiply
    109,190.77x = 163,790.81 × 38,120.56
  4. Step 4: Simplify right side
    109,190.77x = 6,243,796,390.50
  5. Step 5: Solve for x
    x = 6,243,796,390.50/109,190.77
  6. Step 6: Final answer
    x = 57,182.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.