Home / 126,507.10-189,933.45-64,221.34

Finding the Fourth Proportional to 126,507.10, 189,933.45 and 64,221.34

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Solution

The fourth proportional to 126,507.10, 189,933.45 and 64,221.34 is: 96,419.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,507.10 : 189,933.45 = 64,221.34 : x
  2. Step 2: Convert to fraction form
    126,507.10/189,933.45 = 64,221.34/x
  3. Step 3: Cross multiply
    126,507.10x = 189,933.45 × 64,221.34
  4. Step 4: Simplify right side
    126,507.10x = 12,197,780,669.82
  5. Step 5: Solve for x
    x = 12,197,780,669.82/126,507.10
  6. Step 6: Final answer
    x = 96,419.73

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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.