Home / 179,431.47-268,946.04-72,790.65

Finding the Fourth Proportional to 179,431.47, 268,946.04 and 72,790.65

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Solution

The fourth proportional to 179,431.47, 268,946.04 and 72,790.65 is: 109,104.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,431.47 : 268,946.04 = 72,790.65 : x
  2. Step 2: Convert to fraction form
    179,431.47/268,946.04 = 72,790.65/x
  3. Step 3: Cross multiply
    179,431.47x = 268,946.04 × 72,790.65
  4. Step 4: Simplify right side
    179,431.47x = 19,576,757,066.53
  5. Step 5: Solve for x
    x = 19,576,757,066.53/179,431.47
  6. Step 6: Final answer
    x = 109,104.37

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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.