Home / 149,022.16-205,646.48-81,954.16

Finding the Fourth Proportional to 149,022.16, 205,646.48 and 81,954.16

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Solution

The fourth proportional to 149,022.16, 205,646.48 and 81,954.16 is: 113,094.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,022.16 : 205,646.48 = 81,954.16 : x
  2. Step 2: Convert to fraction form
    149,022.16/205,646.48 = 81,954.16/x
  3. Step 3: Cross multiply
    149,022.16x = 205,646.48 × 81,954.16
  4. Step 4: Simplify right side
    149,022.16x = 16,853,584,525.36
  5. Step 5: Solve for x
    x = 16,853,584,525.36/149,022.16
  6. Step 6: Final answer
    x = 113,094.49

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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.