Home / 154,515.04-213,213.13-86,522.56

Finding the Fourth Proportional to 154,515.04, 213,213.13 and 86,522.56

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Solution

The fourth proportional to 154,515.04, 213,213.13 and 86,522.56 is: 119,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,515.04 : 213,213.13 = 86,522.56 : x
  2. Step 2: Convert to fraction form
    154,515.04/213,213.13 = 86,522.56/x
  3. Step 3: Cross multiply
    154,515.04x = 213,213.13 × 86,522.56
  4. Step 4: Simplify right side
    154,515.04x = 18,447,745,833.21
  5. Step 5: Solve for x
    x = 18,447,745,833.21/154,515.04
  6. Step 6: Final answer
    x = 119,391.26

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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.