Home / 153,921.10-230,688.91-82,668.64

Finding the Fourth Proportional to 153,921.10, 230,688.91 and 82,668.64

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Solution

The fourth proportional to 153,921.10, 230,688.91 and 82,668.64 is: 123,899.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,921.10 : 230,688.91 = 82,668.64 : x
  2. Step 2: Convert to fraction form
    153,921.10/230,688.91 = 82,668.64/x
  3. Step 3: Cross multiply
    153,921.10x = 230,688.91 × 82,668.64
  4. Step 4: Simplify right side
    153,921.10x = 19,070,738,452.78
  5. Step 5: Solve for x
    x = 19,070,738,452.78/153,921.10
  6. Step 6: Final answer
    x = 123,899.44

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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.