Home / 325,812.20-488,803.35-126,139.10

Finding the Fourth Proportional to 325,812.20, 488,803.35 and 126,139.10

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Solution

The fourth proportional to 325,812.20, 488,803.35 and 126,139.10 is: 189,241.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,812.20 : 488,803.35 = 126,139.10 : x
  2. Step 2: Convert to fraction form
    325,812.20/488,803.35 = 126,139.10/x
  3. Step 3: Cross multiply
    325,812.20x = 488,803.35 × 126,139.10
  4. Step 4: Simplify right side
    325,812.20x = 61,657,214,645.99
  5. Step 5: Solve for x
    x = 61,657,214,645.99/325,812.20
  6. Step 6: Final answer
    x = 189,241.58

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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.