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Finding the Fourth Proportional to 108,942.51, 150,357.02 and 66,525.51

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Solution

The fourth proportional to 108,942.51, 150,357.02 and 66,525.51 is: 91,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,942.51 : 150,357.02 = 66,525.51 : x
  2. Step 2: Convert to fraction form
    108,942.51/150,357.02 = 66,525.51/x
  3. Step 3: Cross multiply
    108,942.51x = 150,357.02 × 66,525.51
  4. Step 4: Simplify right side
    108,942.51x = 10,002,576,852.11
  5. Step 5: Solve for x
    x = 10,002,576,852.11/108,942.51
  6. Step 6: Final answer
    x = 91,815.19

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1.5x scale

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.