Home / 116,419.36-160,659.84-66,118.72

Finding the Fourth Proportional to 116,419.36, 160,659.84 and 66,118.72

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Solution

The fourth proportional to 116,419.36, 160,659.84 and 66,118.72 is: 91,244.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,419.36 : 160,659.84 = 66,118.72 : x
  2. Step 2: Convert to fraction form
    116,419.36/160,659.84 = 66,118.72/x
  3. Step 3: Cross multiply
    116,419.36x = 160,659.84 × 66,118.72
  4. Step 4: Simplify right side
    116,419.36x = 10,622,622,976.20
  5. Step 5: Solve for x
    x = 10,622,622,976.20/116,419.36
  6. Step 6: Final answer
    x = 91,244.47

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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.