Home / 154,226.40-212,832.72-86,245.92

Finding the Fourth Proportional to 154,226.40, 212,832.72 and 86,245.92

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Solution

The fourth proportional to 154,226.40, 212,832.72 and 86,245.92 is: 119,019.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,226.40 : 212,832.72 = 86,245.92 : x
  2. Step 2: Convert to fraction form
    154,226.40/212,832.72 = 86,245.92/x
  3. Step 3: Cross multiply
    154,226.40x = 212,832.72 × 86,245.92
  4. Step 4: Simplify right side
    154,226.40x = 18,355,953,742.50
  5. Step 5: Solve for x
    x = 18,355,953,742.50/154,226.40
  6. Step 6: Final answer
    x = 119,019.53

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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.