Home / 127,867.78-176,422.91-72,676.34

Finding the Fourth Proportional to 127,867.78, 176,422.91 and 72,676.34

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Solution

The fourth proportional to 127,867.78, 176,422.91 and 72,676.34 is: 100,273.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,867.78 : 176,422.91 = 72,676.34 : x
  2. Step 2: Convert to fraction form
    127,867.78/176,422.91 = 72,676.34/x
  3. Step 3: Cross multiply
    127,867.78x = 176,422.91 × 72,676.34
  4. Step 4: Simplify right side
    127,867.78x = 12,821,771,390.95
  5. Step 5: Solve for x
    x = 12,821,771,390.95/127,867.78
  6. Step 6: Final answer
    x = 100,273.67

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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.