Home / 120,643.24-180,935.70-50,575

Finding the Fourth Proportional to 120,643.24, 180,935.70 and 50,575

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Solution

The fourth proportional to 120,643.24, 180,935.70 and 50,575 is: 75,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,643.24 : 180,935.70 = 50,575 : x
  2. Step 2: Convert to fraction form
    120,643.24/180,935.70 = 50,575/x
  3. Step 3: Cross multiply
    120,643.24x = 180,935.70 × 50,575
  4. Step 4: Simplify right side
    120,643.24x = 9,150,823,027.50
  5. Step 5: Solve for x
    x = 9,150,823,027.50/120,643.24
  6. Step 6: Final answer
    x = 75,850.28

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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.