Home / 104,867.88-157,146.27-77,029.80

Finding the Fourth Proportional to 104,867.88, 157,146.27 and 77,029.80

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Solution

The fourth proportional to 104,867.88, 157,146.27 and 77,029.80 is: 115,430.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,867.88 : 157,146.27 = 77,029.80 : x
  2. Step 2: Convert to fraction form
    104,867.88/157,146.27 = 77,029.80/x
  3. Step 3: Cross multiply
    104,867.88x = 157,146.27 × 77,029.80
  4. Step 4: Simplify right side
    104,867.88x = 12,104,945,748.85
  5. Step 5: Solve for x
    x = 12,104,945,748.85/104,867.88
  6. Step 6: Final answer
    x = 115,430.44

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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.