Home / 154,270.39-212,912.85-86,291.14

Finding the Fourth Proportional to 154,270.39, 212,912.85 and 86,291.14

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Solution

The fourth proportional to 154,270.39, 212,912.85 and 86,291.14 is: 119,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,270.39 : 212,912.85 = 86,291.14 : x
  2. Step 2: Convert to fraction form
    154,270.39/212,912.85 = 86,291.14/x
  3. Step 3: Cross multiply
    154,270.39x = 212,912.85 × 86,291.14
  4. Step 4: Simplify right side
    154,270.39x = 18,372,492,737.67
  5. Step 5: Solve for x
    x = 18,372,492,737.67/154,270.39
  6. Step 6: Final answer
    x = 119,092.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.