Home / 116,490.36-160,757.82-66,189.72

Finding the Fourth Proportional to 116,490.36, 160,757.82 and 66,189.72

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Solution

The fourth proportional to 116,490.36, 160,757.82 and 66,189.72 is: 91,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,490.36 : 160,757.82 = 66,189.72 : x
  2. Step 2: Convert to fraction form
    116,490.36/160,757.82 = 66,189.72/x
  3. Step 3: Cross multiply
    116,490.36x = 160,757.82 × 66,189.72
  4. Step 4: Simplify right side
    116,490.36x = 10,640,515,093.61
  5. Step 5: Solve for x
    x = 10,640,515,093.61/116,490.36
  6. Step 6: Final answer
    x = 91,342.45

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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.