Home / 439,629.60-659,444.40-140,107.80

Finding the Fourth Proportional to 439,629.60, 659,444.40 and 140,107.80

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Solution

The fourth proportional to 439,629.60, 659,444.40 and 140,107.80 is: 210,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,629.60 : 659,444.40 = 140,107.80 : x
  2. Step 2: Convert to fraction form
    439,629.60/659,444.40 = 140,107.80/x
  3. Step 3: Cross multiply
    439,629.60x = 659,444.40 × 140,107.80
  4. Step 4: Simplify right side
    439,629.60x = 92,393,304,106.32
  5. Step 5: Solve for x
    x = 92,393,304,106.32/439,629.60
  6. Step 6: Final answer
    x = 210,161.70

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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.