Home / 138,706.22-191,240.32-113,186.67

Finding the Fourth Proportional to 138,706.22, 191,240.32 and 113,186.67

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Solution

The fourth proportional to 138,706.22, 191,240.32 and 113,186.67 is: 156,055.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,706.22 : 191,240.32 = 113,186.67 : x
  2. Step 2: Convert to fraction form
    138,706.22/191,240.32 = 113,186.67/x
  3. Step 3: Cross multiply
    138,706.22x = 191,240.32 × 113,186.67
  4. Step 4: Simplify right side
    138,706.22x = 21,645,853,884.30
  5. Step 5: Solve for x
    x = 21,645,853,884.30/138,706.22
  6. Step 6: Final answer
    x = 156,055.39

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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.