Home / 126,056.70-189,120.16-54,985.68

Finding the Fourth Proportional to 126,056.70, 189,120.16 and 54,985.68

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Solution

The fourth proportional to 126,056.70, 189,120.16 and 54,985.68 is: 82,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,056.70 : 189,120.16 = 54,985.68 : x
  2. Step 2: Convert to fraction form
    126,056.70/189,120.16 = 54,985.68/x
  3. Step 3: Cross multiply
    126,056.70x = 189,120.16 × 54,985.68
  4. Step 4: Simplify right side
    126,056.70x = 10,398,900,599.31
  5. Step 5: Solve for x
    x = 10,398,900,599.31/126,056.70
  6. Step 6: Final answer
    x = 82,493.83

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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.