Home / 148,739.45-205,259.24-80,755.08

Finding the Fourth Proportional to 148,739.45, 205,259.24 and 80,755.08

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Solution

The fourth proportional to 148,739.45, 205,259.24 and 80,755.08 is: 111,441.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,739.45 : 205,259.24 = 80,755.08 : x
  2. Step 2: Convert to fraction form
    148,739.45/205,259.24 = 80,755.08/x
  3. Step 3: Cross multiply
    148,739.45x = 205,259.24 × 80,755.08
  4. Step 4: Simplify right side
    148,739.45x = 16,575,725,320.64
  5. Step 5: Solve for x
    x = 16,575,725,320.64/148,739.45
  6. Step 6: Final answer
    x = 111,441.35

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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.