Home / 104,917.11-157,422.14-54,985.31

Finding the Fourth Proportional to 104,917.11, 157,422.14 and 54,985.31

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Solution

The fourth proportional to 104,917.11, 157,422.14 and 54,985.31 is: 82,502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,917.11 : 157,422.14 = 54,985.31 : x
  2. Step 2: Convert to fraction form
    104,917.11/157,422.14 = 54,985.31/x
  3. Step 3: Cross multiply
    104,917.11x = 157,422.14 × 54,985.31
  4. Step 4: Simplify right side
    104,917.11x = 8,655,905,168.76
  5. Step 5: Solve for x
    x = 8,655,905,168.76/104,917.11
  6. Step 6: Final answer
    x = 82,502.32

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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.