Home / 126,137.83-189,257.25-51,263.74

Finding the Fourth Proportional to 126,137.83, 189,257.25 and 51,263.74

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Solution

The fourth proportional to 126,137.83, 189,257.25 and 51,263.74 is: 76,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,137.83 : 189,257.25 = 51,263.74 : x
  2. Step 2: Convert to fraction form
    126,137.83/189,257.25 = 51,263.74/x
  3. Step 3: Cross multiply
    126,137.83x = 189,257.25 × 51,263.74
  4. Step 4: Simplify right side
    126,137.83x = 9,702,034,457.12
  5. Step 5: Solve for x
    x = 9,702,034,457.12/126,137.83
  6. Step 6: Final answer
    x = 76,916.14

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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.