Home / 148,400.94-222,069.31-128,478.96

Finding the Fourth Proportional to 148,400.94, 222,069.31 and 128,478.96

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Solution

The fourth proportional to 148,400.94, 222,069.31 and 128,478.96 is: 192,257.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,400.94 : 222,069.31 = 128,478.96 : x
  2. Step 2: Convert to fraction form
    148,400.94/222,069.31 = 128,478.96/x
  3. Step 3: Cross multiply
    148,400.94x = 222,069.31 × 128,478.96
  4. Step 4: Simplify right side
    148,400.94x = 28,531,232,565.17
  5. Step 5: Solve for x
    x = 28,531,232,565.17/148,400.94
  6. Step 6: Final answer
    x = 192,257.76

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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.