Home / 108,219.87-162,242.39-45,087.55

Finding the Fourth Proportional to 108,219.87, 162,242.39 and 45,087.55

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Solution

The fourth proportional to 108,219.87, 162,242.39 and 45,087.55 is: 67,594.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,219.87 : 162,242.39 = 45,087.55 : x
  2. Step 2: Convert to fraction form
    108,219.87/162,242.39 = 45,087.55/x
  3. Step 3: Cross multiply
    108,219.87x = 162,242.39 × 45,087.55
  4. Step 4: Simplify right side
    108,219.87x = 7,315,111,578.36
  5. Step 5: Solve for x
    x = 7,315,111,578.36/108,219.87
  6. Step 6: Final answer
    x = 67,594.90

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1.5x scale

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.