Home / 126,408.14-174,480.63-72,730.96

Finding the Fourth Proportional to 126,408.14, 174,480.63 and 72,730.96

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Solution

The fourth proportional to 126,408.14, 174,480.63 and 72,730.96 is: 100,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,408.14 : 174,480.63 = 72,730.96 : x
  2. Step 2: Convert to fraction form
    126,408.14/174,480.63 = 72,730.96/x
  3. Step 3: Cross multiply
    126,408.14x = 174,480.63 × 72,730.96
  4. Step 4: Simplify right side
    126,408.14x = 12,690,143,285.10
  5. Step 5: Solve for x
    x = 12,690,143,285.10/126,408.14
  6. Step 6: Final answer
    x = 100,390.24

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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.