Home / 116,489.36-160,756.44-66,188.72

Finding the Fourth Proportional to 116,489.36, 160,756.44 and 66,188.72

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Solution

The fourth proportional to 116,489.36, 160,756.44 and 66,188.72 is: 91,341.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,489.36 : 160,756.44 = 66,188.72 : x
  2. Step 2: Convert to fraction form
    116,489.36/160,756.44 = 66,188.72/x
  3. Step 3: Cross multiply
    116,489.36x = 160,756.44 × 66,188.72
  4. Step 4: Simplify right side
    116,489.36x = 10,640,262,995.36
  5. Step 5: Solve for x
    x = 10,640,262,995.36/116,489.36
  6. Step 6: Final answer
    x = 91,341.07

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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.