Home / 154,007.01-212,523.33-86,023.66

Finding the Fourth Proportional to 154,007.01, 212,523.33 and 86,023.66

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Solution

The fourth proportional to 154,007.01, 212,523.33 and 86,023.66 is: 118,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,007.01 : 212,523.33 = 86,023.66 : x
  2. Step 2: Convert to fraction form
    154,007.01/212,523.33 = 86,023.66/x
  3. Step 3: Cross multiply
    154,007.01x = 212,523.33 × 86,023.66
  4. Step 4: Simplify right side
    154,007.01x = 18,282,033,720.56
  5. Step 5: Solve for x
    x = 18,282,033,720.56/154,007.01
  6. Step 6: Final answer
    x = 118,709.10

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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.