Home / 128,130.56-191,414.92-123,464.96

Finding the Fourth Proportional to 128,130.56, 191,414.92 and 123,464.96

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Solution

The fourth proportional to 128,130.56, 191,414.92 and 123,464.96 is: 184,444.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,130.56 : 191,414.92 = 123,464.96 : x
  2. Step 2: Convert to fraction form
    128,130.56/191,414.92 = 123,464.96/x
  3. Step 3: Cross multiply
    128,130.56x = 191,414.92 × 123,464.96
  4. Step 4: Simplify right side
    128,130.56x = 23,633,035,441.20
  5. Step 5: Solve for x
    x = 23,633,035,441.20/128,130.56
  6. Step 6: Final answer
    x = 184,444.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.