Home / 236,535.90-354,860.34-78,765.72

Finding the Fourth Proportional to 236,535.90, 354,860.34 and 78,765.72

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Solution

The fourth proportional to 236,535.90, 354,860.34 and 78,765.72 is: 118,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,535.90 : 354,860.34 = 78,765.72 : x
  2. Step 2: Convert to fraction form
    236,535.90/354,860.34 = 78,765.72/x
  3. Step 3: Cross multiply
    236,535.90x = 354,860.34 × 78,765.72
  4. Step 4: Simplify right side
    236,535.90x = 27,950,830,179.54
  5. Step 5: Solve for x
    x = 27,950,830,179.54/236,535.90
  6. Step 6: Final answer
    x = 118,167.39

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1.5x scale

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.