Home / 104,123.10-156,161.25-47,909.28

Finding the Fourth Proportional to 104,123.10, 156,161.25 and 47,909.28

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Solution

The fourth proportional to 104,123.10, 156,161.25 and 47,909.28 is: 71,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,123.10 : 156,161.25 = 47,909.28 : x
  2. Step 2: Convert to fraction form
    104,123.10/156,161.25 = 47,909.28/x
  3. Step 3: Cross multiply
    104,123.10x = 156,161.25 × 47,909.28
  4. Step 4: Simplify right side
    104,123.10x = 7,481,573,051.40
  5. Step 5: Solve for x
    x = 7,481,573,051.40/104,123.10
  6. Step 6: Final answer
    x = 71,853.15

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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.