Home / 137,285.22-189,457.21-76,855.60

Finding the Fourth Proportional to 137,285.22, 189,457.21 and 76,855.60

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Solution

The fourth proportional to 137,285.22, 189,457.21 and 76,855.60 is: 106,062.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,285.22 : 189,457.21 = 76,855.60 : x
  2. Step 2: Convert to fraction form
    137,285.22/189,457.21 = 76,855.60/x
  3. Step 3: Cross multiply
    137,285.22x = 189,457.21 × 76,855.60
  4. Step 4: Simplify right side
    137,285.22x = 14,560,847,548.88
  5. Step 5: Solve for x
    x = 14,560,847,548.88/137,285.22
  6. Step 6: Final answer
    x = 106,062.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.