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Finding the Fourth Proportional to 153,745.89, 230,685.44 and 82,585.50

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Solution

The fourth proportional to 153,745.89, 230,685.44 and 82,585.50 is: 123,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,745.89 : 230,685.44 = 82,585.50 : x
  2. Step 2: Convert to fraction form
    153,745.89/230,685.44 = 82,585.50/x
  3. Step 3: Cross multiply
    153,745.89x = 230,685.44 × 82,585.50
  4. Step 4: Simplify right side
    153,745.89x = 19,051,273,476.65
  5. Step 5: Solve for x
    x = 19,051,273,476.65/153,745.89
  6. Step 6: Final answer
    x = 123,914.03

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1.5x scale

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.