Home / 224,469.09-309,820.53-129,031.23

Finding the Fourth Proportional to 224,469.09, 309,820.53 and 129,031.23

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Solution

The fourth proportional to 224,469.09, 309,820.53 and 129,031.23 is: 178,093.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,469.09 : 309,820.53 = 129,031.23 : x
  2. Step 2: Convert to fraction form
    224,469.09/309,820.53 = 129,031.23/x
  3. Step 3: Cross multiply
    224,469.09x = 309,820.53 × 129,031.23
  4. Step 4: Simplify right side
    224,469.09x = 39,976,524,065.15
  5. Step 5: Solve for x
    x = 39,976,524,065.15/224,469.09
  6. Step 6: Final answer
    x = 178,093.67

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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.