Home / 157,704.22-217,634.88-86,090.50

Finding the Fourth Proportional to 157,704.22, 217,634.88 and 86,090.50

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Solution

The fourth proportional to 157,704.22, 217,634.88 and 86,090.50 is: 118,806.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,704.22 : 217,634.88 = 86,090.50 : x
  2. Step 2: Convert to fraction form
    157,704.22/217,634.88 = 86,090.50/x
  3. Step 3: Cross multiply
    157,704.22x = 217,634.88 × 86,090.50
  4. Step 4: Simplify right side
    157,704.22x = 18,736,295,636.64
  5. Step 5: Solve for x
    x = 18,736,295,636.64/157,704.22
  6. Step 6: Final answer
    x = 118,806.56

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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.