Home / 169,435.18-253,987.53-80,664.85

Finding the Fourth Proportional to 169,435.18, 253,987.53 and 80,664.85

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Solution

The fourth proportional to 169,435.18, 253,987.53 and 80,664.85 is: 120,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,435.18 : 253,987.53 = 80,664.85 : x
  2. Step 2: Convert to fraction form
    169,435.18/253,987.53 = 80,664.85/x
  3. Step 3: Cross multiply
    169,435.18x = 253,987.53 × 80,664.85
  4. Step 4: Simplify right side
    169,435.18x = 20,487,866,009.32
  5. Step 5: Solve for x
    x = 20,487,866,009.32/169,435.18
  6. Step 6: Final answer
    x = 120,918.61

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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.