Home / 154,070.44-212,627.09-86,087.61

Finding the Fourth Proportional to 154,070.44, 212,627.09 and 86,087.61

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Solution

The fourth proportional to 154,070.44, 212,627.09 and 86,087.61 is: 118,806.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,070.44 : 212,627.09 = 86,087.61 : x
  2. Step 2: Convert to fraction form
    154,070.44/212,627.09 = 86,087.61/x
  3. Step 3: Cross multiply
    154,070.44x = 212,627.09 × 86,087.61
  4. Step 4: Simplify right side
    154,070.44x = 18,304,558,214.57
  5. Step 5: Solve for x
    x = 18,304,558,214.57/154,070.44
  6. Step 6: Final answer
    x = 118,806.43

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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.