Home / 154,415.80-231,623.70-148,292.20

Finding the Fourth Proportional to 154,415.80, 231,623.70 and 148,292.20

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Solution

The fourth proportional to 154,415.80, 231,623.70 and 148,292.20 is: 222,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,415.80 : 231,623.70 = 148,292.20 : x
  2. Step 2: Convert to fraction form
    154,415.80/231,623.70 = 148,292.20/x
  3. Step 3: Cross multiply
    154,415.80x = 231,623.70 × 148,292.20
  4. Step 4: Simplify right side
    154,415.80x = 34,347,988,045.14
  5. Step 5: Solve for x
    x = 34,347,988,045.14/154,415.80
  6. Step 6: Final answer
    x = 222,438.30

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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.