Home / 154,236.84-212,845.35-86,253.04

Finding the Fourth Proportional to 154,236.84, 212,845.35 and 86,253.04

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Solution

The fourth proportional to 154,236.84, 212,845.35 and 86,253.04 is: 119,028.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,236.84 : 212,845.35 = 86,253.04 : x
  2. Step 2: Convert to fraction form
    154,236.84/212,845.35 = 86,253.04/x
  3. Step 3: Cross multiply
    154,236.84x = 212,845.35 × 86,253.04
  4. Step 4: Simplify right side
    154,236.84x = 18,358,558,487.36
  5. Step 5: Solve for x
    x = 18,358,558,487.36/154,236.84
  6. Step 6: Final answer
    x = 119,028.36

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1.5x scale

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.