Home / 117,038.87-161,513.55-66,062.33

Finding the Fourth Proportional to 117,038.87, 161,513.55 and 66,062.33

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Solution

The fourth proportional to 117,038.87, 161,513.55 and 66,062.33 is: 91,165.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,038.87 : 161,513.55 = 66,062.33 : x
  2. Step 2: Convert to fraction form
    117,038.87/161,513.55 = 66,062.33/x
  3. Step 3: Cross multiply
    117,038.87x = 161,513.55 × 66,062.33
  4. Step 4: Simplify right side
    117,038.87x = 10,669,960,632.00
  5. Step 5: Solve for x
    x = 10,669,960,632.00/117,038.87
  6. Step 6: Final answer
    x = 91,165.96

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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.