Home / 179,412.22-268,917.18-72,771.40

Finding the Fourth Proportional to 179,412.22, 268,917.18 and 72,771.40

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Solution

The fourth proportional to 179,412.22, 268,917.18 and 72,771.40 is: 109,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,412.22 : 268,917.18 = 72,771.40 : x
  2. Step 2: Convert to fraction form
    179,412.22/268,917.18 = 72,771.40/x
  3. Step 3: Cross multiply
    179,412.22x = 268,917.18 × 72,771.40
  4. Step 4: Simplify right side
    179,412.22x = 19,569,479,672.65
  5. Step 5: Solve for x
    x = 19,569,479,672.65/179,412.22
  6. Step 6: Final answer
    x = 109,075.51

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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.