Home / 117,240.09-161,794.34-71,943.10

Finding the Fourth Proportional to 117,240.09, 161,794.34 and 71,943.10

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Solution

The fourth proportional to 117,240.09, 161,794.34 and 71,943.10 is: 99,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,240.09 : 161,794.34 = 71,943.10 : x
  2. Step 2: Convert to fraction form
    117,240.09/161,794.34 = 71,943.10/x
  3. Step 3: Cross multiply
    117,240.09x = 161,794.34 × 71,943.10
  4. Step 4: Simplify right side
    117,240.09x = 11,639,987,202.41
  5. Step 5: Solve for x
    x = 11,639,987,202.41/117,240.09
  6. Step 6: Final answer
    x = 99,283.33

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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.