Home / 126,128.44-189,192.66-43,023.16

Finding the Fourth Proportional to 126,128.44, 189,192.66 and 43,023.16

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Solution

The fourth proportional to 126,128.44, 189,192.66 and 43,023.16 is: 64,534.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,128.44 : 189,192.66 = 43,023.16 : x
  2. Step 2: Convert to fraction form
    126,128.44/189,192.66 = 43,023.16/x
  3. Step 3: Cross multiply
    126,128.44x = 189,192.66 × 43,023.16
  4. Step 4: Simplify right side
    126,128.44x = 8,139,666,082.01
  5. Step 5: Solve for x
    x = 8,139,666,082.01/126,128.44
  6. Step 6: Final answer
    x = 64,534.74

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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.