Home / 157,372.90-236,129.09-82,475.22

Finding the Fourth Proportional to 157,372.90, 236,129.09 and 82,475.22

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Solution

The fourth proportional to 157,372.90, 236,129.09 and 82,475.22 is: 123,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,372.90 : 236,129.09 = 82,475.22 : x
  2. Step 2: Convert to fraction form
    157,372.90/236,129.09 = 82,475.22/x
  3. Step 3: Cross multiply
    157,372.90x = 236,129.09 × 82,475.22
  4. Step 4: Simplify right side
    157,372.90x = 19,474,798,646.15
  5. Step 5: Solve for x
    x = 19,474,798,646.15/157,372.90
  6. Step 6: Final answer
    x = 123,749.38

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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.