Home / 117,615.42-162,273.54-66,620.06

Finding the Fourth Proportional to 117,615.42, 162,273.54 and 66,620.06

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Solution

The fourth proportional to 117,615.42, 162,273.54 and 66,620.06 is: 91,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,615.42 : 162,273.54 = 66,620.06 : x
  2. Step 2: Convert to fraction form
    117,615.42/162,273.54 = 66,620.06/x
  3. Step 3: Cross multiply
    117,615.42x = 162,273.54 × 66,620.06
  4. Step 4: Simplify right side
    117,615.42x = 10,810,672,971.21
  5. Step 5: Solve for x
    x = 10,810,672,971.21/117,615.42
  6. Step 6: Final answer
    x = 91,915.44

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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.