Home / 126,606.96-189,936-56,486.28

Finding the Fourth Proportional to 126,606.96, 189,936 and 56,486.28

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Solution

The fourth proportional to 126,606.96, 189,936 and 56,486.28 is: 84,740.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,606.96 : 189,936 = 56,486.28 : x
  2. Step 2: Convert to fraction form
    126,606.96/189,936 = 56,486.28/x
  3. Step 3: Cross multiply
    126,606.96x = 189,936 × 56,486.28
  4. Step 4: Simplify right side
    126,606.96x = 10,728,778,078.08
  5. Step 5: Solve for x
    x = 10,728,778,078.08/126,606.96
  6. Step 6: Final answer
    x = 84,740.82

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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.