Home / 220,023.02-303,621.24-135,123.68

Finding the Fourth Proportional to 220,023.02, 303,621.24 and 135,123.68

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Solution

The fourth proportional to 220,023.02, 303,621.24 and 135,123.68 is: 186,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,023.02 : 303,621.24 = 135,123.68 : x
  2. Step 2: Convert to fraction form
    220,023.02/303,621.24 = 135,123.68/x
  3. Step 3: Cross multiply
    220,023.02x = 303,621.24 × 135,123.68
  4. Step 4: Simplify right side
    220,023.02x = 41,026,419,274.96
  5. Step 5: Solve for x
    x = 41,026,419,274.96/220,023.02
  6. Step 6: Final answer
    x = 186,464.21

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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.