Home / 161,981.41-223,533.73-90,361.37

Finding the Fourth Proportional to 161,981.41, 223,533.73 and 90,361.37

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Solution

The fourth proportional to 161,981.41, 223,533.73 and 90,361.37 is: 124,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,981.41 : 223,533.73 = 90,361.37 : x
  2. Step 2: Convert to fraction form
    161,981.41/223,533.73 = 90,361.37/x
  3. Step 3: Cross multiply
    161,981.41x = 223,533.73 × 90,361.37
  4. Step 4: Simplify right side
    161,981.41x = 20,198,814,247.51
  5. Step 5: Solve for x
    x = 20,198,814,247.51/161,981.41
  6. Step 6: Final answer
    x = 124,698.35

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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.