Home / 254,130.96-381,210.12-67,137.36

Finding the Fourth Proportional to 254,130.96, 381,210.12 and 67,137.36

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Solution

The fourth proportional to 254,130.96, 381,210.12 and 67,137.36 is: 100,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,130.96 : 381,210.12 = 67,137.36 : x
  2. Step 2: Convert to fraction form
    254,130.96/381,210.12 = 67,137.36/x
  3. Step 3: Cross multiply
    254,130.96x = 381,210.12 × 67,137.36
  4. Step 4: Simplify right side
    254,130.96x = 25,593,441,062.08
  5. Step 5: Solve for x
    x = 25,593,441,062.08/254,130.96
  6. Step 6: Final answer
    x = 100,709.65

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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.