Home / 130,408.82-179,951.73-103,616.18

Finding the Fourth Proportional to 130,408.82, 179,951.73 and 103,616.18

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Solution

The fourth proportional to 130,408.82, 179,951.73 and 103,616.18 is: 142,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,408.82 : 179,951.73 = 103,616.18 : x
  2. Step 2: Convert to fraction form
    130,408.82/179,951.73 = 103,616.18/x
  3. Step 3: Cross multiply
    130,408.82x = 179,951.73 × 103,616.18
  4. Step 4: Simplify right side
    130,408.82x = 18,645,910,846.99
  5. Step 5: Solve for x
    x = 18,645,910,846.99/130,408.82
  6. Step 6: Final answer
    x = 142,980.44

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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.