Home / 124,586.40-186,768.42-45,682.20

Finding the Fourth Proportional to 124,586.40, 186,768.42 and 45,682.20

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Solution

The fourth proportional to 124,586.40, 186,768.42 and 45,682.20 is: 68,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,586.40 : 186,768.42 = 45,682.20 : x
  2. Step 2: Convert to fraction form
    124,586.40/186,768.42 = 45,682.20/x
  3. Step 3: Cross multiply
    124,586.40x = 186,768.42 × 45,682.20
  4. Step 4: Simplify right side
    124,586.40x = 8,531,992,316.12
  5. Step 5: Solve for x
    x = 8,531,992,316.12/124,586.40
  6. Step 6: Final answer
    x = 68,482.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.