Home / 149,514.72-206,319.84-84,113.28

Finding the Fourth Proportional to 149,514.72, 206,319.84 and 84,113.28

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Solution

The fourth proportional to 149,514.72, 206,319.84 and 84,113.28 is: 116,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,514.72 : 206,319.84 = 84,113.28 : x
  2. Step 2: Convert to fraction form
    149,514.72/206,319.84 = 84,113.28/x
  3. Step 3: Cross multiply
    149,514.72x = 206,319.84 × 84,113.28
  4. Step 4: Simplify right side
    149,514.72x = 17,354,238,471.48
  5. Step 5: Solve for x
    x = 17,354,238,471.48/149,514.72
  6. Step 6: Final answer
    x = 116,070.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.