Home / 216,556.39-298,857.09-121,063.06

Finding the Fourth Proportional to 216,556.39, 298,857.09 and 121,063.06

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Solution

The fourth proportional to 216,556.39, 298,857.09 and 121,063.06 is: 167,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,556.39 : 298,857.09 = 121,063.06 : x
  2. Step 2: Convert to fraction form
    216,556.39/298,857.09 = 121,063.06/x
  3. Step 3: Cross multiply
    216,556.39x = 298,857.09 × 121,063.06
  4. Step 4: Simplify right side
    216,556.39x = 36,180,553,818.10
  5. Step 5: Solve for x
    x = 36,180,553,818.10/216,556.39
  6. Step 6: Final answer
    x = 167,072.21

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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.