Home / 108,900.36-150,298.78-66,483.56

Finding the Fourth Proportional to 108,900.36, 150,298.78 and 66,483.56

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Solution

The fourth proportional to 108,900.36, 150,298.78 and 66,483.56 is: 91,757.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,900.36 : 150,298.78 = 66,483.56 : x
  2. Step 2: Convert to fraction form
    108,900.36/150,298.78 = 66,483.56/x
  3. Step 3: Cross multiply
    108,900.36x = 150,298.78 × 66,483.56
  4. Step 4: Simplify right side
    108,900.36x = 9,992,397,958.06
  5. Step 5: Solve for x
    x = 9,992,397,958.06/108,900.36
  6. Step 6: Final answer
    x = 91,757.25

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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.