Home / 439,628.05-659,429.71-140,126.58

Finding the Fourth Proportional to 439,628.05, 659,429.71 and 140,126.58

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Solution

The fourth proportional to 439,628.05, 659,429.71 and 140,126.58 is: 210,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,628.05 : 659,429.71 = 140,126.58 : x
  2. Step 2: Convert to fraction form
    439,628.05/659,429.71 = 140,126.58/x
  3. Step 3: Cross multiply
    439,628.05x = 659,429.71 × 140,126.58
  4. Step 4: Simplify right side
    439,628.05x = 92,403,630,012.69
  5. Step 5: Solve for x
    x = 92,403,630,012.69/439,628.05
  6. Step 6: Final answer
    x = 210,185.93

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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.