Home / 222,139.37-306,427.77-136,140.03

Finding the Fourth Proportional to 222,139.37, 306,427.77 and 136,140.03

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Solution

The fourth proportional to 222,139.37, 306,427.77 and 136,140.03 is: 187,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,139.37 : 306,427.77 = 136,140.03 : x
  2. Step 2: Convert to fraction form
    222,139.37/306,427.77 = 136,140.03/x
  3. Step 3: Cross multiply
    222,139.37x = 306,427.77 × 136,140.03
  4. Step 4: Simplify right side
    222,139.37x = 41,717,085,800.63
  5. Step 5: Solve for x
    x = 41,717,085,800.63/222,139.37
  6. Step 6: Final answer
    x = 187,796.90

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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.