Home / 119,884.09-165,428.26-66,165.64

Finding the Fourth Proportional to 119,884.09, 165,428.26 and 66,165.64

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Solution

The fourth proportional to 119,884.09, 165,428.26 and 66,165.64 is: 91,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,884.09 : 165,428.26 = 66,165.64 : x
  2. Step 2: Convert to fraction form
    119,884.09/165,428.26 = 66,165.64/x
  3. Step 3: Cross multiply
    119,884.09x = 165,428.26 × 66,165.64
  4. Step 4: Simplify right side
    119,884.09x = 10,945,666,560.02
  5. Step 5: Solve for x
    x = 10,945,666,560.02/119,884.09
  6. Step 6: Final answer
    x = 91,302.08

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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.