Home / 148,401.21-222,069.71-128,479.22

Finding the Fourth Proportional to 148,401.21, 222,069.71 and 128,479.22

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Solution

The fourth proportional to 148,401.21, 222,069.71 and 128,479.22 is: 192,258.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,401.21 : 222,069.71 = 128,479.22 : x
  2. Step 2: Convert to fraction form
    148,401.21/222,069.71 = 128,479.22/x
  3. Step 3: Cross multiply
    148,401.21x = 222,069.71 × 128,479.22
  4. Step 4: Simplify right side
    148,401.21x = 28,531,342,206.44
  5. Step 5: Solve for x
    x = 28,531,342,206.44/148,401.21
  6. Step 6: Final answer
    x = 192,258.15

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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.