Home / 154,553.04-213,265.44-86,560.56

Finding the Fourth Proportional to 154,553.04, 213,265.44 and 86,560.56

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Solution

The fourth proportional to 154,553.04, 213,265.44 and 86,560.56 is: 119,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,553.04 : 213,265.44 = 86,560.56 : x
  2. Step 2: Convert to fraction form
    154,553.04/213,265.44 = 86,560.56/x
  3. Step 3: Cross multiply
    154,553.04x = 213,265.44 × 86,560.56
  4. Step 4: Simplify right side
    154,553.04x = 18,460,375,915.05
  5. Step 5: Solve for x
    x = 18,460,375,915.05/154,553.04
  6. Step 6: Final answer
    x = 119,443.63

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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.