Home / 154,452.03-213,119.10-86,471.85

Finding the Fourth Proportional to 154,452.03, 213,119.10 and 86,471.85

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Solution

The fourth proportional to 154,452.03, 213,119.10 and 86,471.85 is: 119,317.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,452.03 : 213,119.10 = 86,471.85 : x
  2. Step 2: Convert to fraction form
    154,452.03/213,119.10 = 86,471.85/x
  3. Step 3: Cross multiply
    154,452.03x = 213,119.10 × 86,471.85
  4. Step 4: Simplify right side
    154,452.03x = 18,428,802,847.34
  5. Step 5: Solve for x
    x = 18,428,802,847.34/154,452.03
  6. Step 6: Final answer
    x = 119,317.32

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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.