Home / 213,708.36-320,469.03-101,420.76

Finding the Fourth Proportional to 213,708.36, 320,469.03 and 101,420.76

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Solution

The fourth proportional to 213,708.36, 320,469.03 and 101,420.76 is: 152,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,708.36 : 320,469.03 = 101,420.76 : x
  2. Step 2: Convert to fraction form
    213,708.36/320,469.03 = 101,420.76/x
  3. Step 3: Cross multiply
    213,708.36x = 320,469.03 × 101,420.76
  4. Step 4: Simplify right side
    213,708.36x = 32,502,212,579.06
  5. Step 5: Solve for x
    x = 32,502,212,579.06/213,708.36
  6. Step 6: Final answer
    x = 152,086.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.