Home / 122,748.55-169,352.27-100,048.50

Finding the Fourth Proportional to 122,748.55, 169,352.27 and 100,048.50

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Solution

The fourth proportional to 122,748.55, 169,352.27 and 100,048.50 is: 138,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,748.55 : 169,352.27 = 100,048.50 : x
  2. Step 2: Convert to fraction form
    122,748.55/169,352.27 = 100,048.50/x
  3. Step 3: Cross multiply
    122,748.55x = 169,352.27 × 100,048.50
  4. Step 4: Simplify right side
    122,748.55x = 16,943,440,460.03
  5. Step 5: Solve for x
    x = 16,943,440,460.03/122,748.55
  6. Step 6: Final answer
    x = 138,033.73

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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.