Home / 116,420.36-160,661.22-66,119.72

Finding the Fourth Proportional to 116,420.36, 160,661.22 and 66,119.72

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Solution

The fourth proportional to 116,420.36, 160,661.22 and 66,119.72 is: 91,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,420.36 : 160,661.22 = 66,119.72 : x
  2. Step 2: Convert to fraction form
    116,420.36/160,661.22 = 66,119.72/x
  3. Step 3: Cross multiply
    116,420.36x = 160,661.22 × 66,119.72
  4. Step 4: Simplify right side
    116,420.36x = 10,622,874,881.26
  5. Step 5: Solve for x
    x = 10,622,874,881.26/116,420.36
  6. Step 6: Final answer
    x = 91,245.85

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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.