Home / 145,631.10-218,477.85-82,481.07

Finding the Fourth Proportional to 145,631.10, 218,477.85 and 82,481.07

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Solution

The fourth proportional to 145,631.10, 218,477.85 and 82,481.07 is: 123,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,631.10 : 218,477.85 = 82,481.07 : x
  2. Step 2: Convert to fraction form
    145,631.10/218,477.85 = 82,481.07/x
  3. Step 3: Cross multiply
    145,631.10x = 218,477.85 × 82,481.07
  4. Step 4: Simplify right side
    145,631.10x = 18,020,286,839.30
  5. Step 5: Solve for x
    x = 18,020,286,839.30/145,631.10
  6. Step 6: Final answer
    x = 123,739.28

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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.