Home / 439,558.20-659,118.51-139,999.95

Finding the Fourth Proportional to 439,558.20, 659,118.51 and 139,999.95

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Solution

The fourth proportional to 439,558.20, 659,118.51 and 139,999.95 is: 209,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,558.20 : 659,118.51 = 139,999.95 : x
  2. Step 2: Convert to fraction form
    439,558.20/659,118.51 = 139,999.95/x
  3. Step 3: Cross multiply
    439,558.20x = 659,118.51 × 139,999.95
  4. Step 4: Simplify right side
    439,558.20x = 92,276,558,444.07
  5. Step 5: Solve for x
    x = 92,276,558,444.07/439,558.20
  6. Step 6: Final answer
    x = 209,930.24

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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.