Home / 427,126.22-640,726.23-111,583.13

Finding the Fourth Proportional to 427,126.22, 640,726.23 and 111,583.13

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Solution

The fourth proportional to 427,126.22, 640,726.23 and 111,583.13 is: 167,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,126.22 : 640,726.23 = 111,583.13 : x
  2. Step 2: Convert to fraction form
    427,126.22/640,726.23 = 111,583.13/x
  3. Step 3: Cross multiply
    427,126.22x = 640,726.23 × 111,583.13
  4. Step 4: Simplify right side
    427,126.22x = 71,494,235,431.31
  5. Step 5: Solve for x
    x = 71,494,235,431.31/427,126.22
  6. Step 6: Final answer
    x = 167,384.33

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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.