Home / 189,894.48-261,975.24-109,302.72

Finding the Fourth Proportional to 189,894.48, 261,975.24 and 109,302.72

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Solution

The fourth proportional to 189,894.48, 261,975.24 and 109,302.72 is: 150,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,894.48 : 261,975.24 = 109,302.72 : x
  2. Step 2: Convert to fraction form
    189,894.48/261,975.24 = 109,302.72/x
  3. Step 3: Cross multiply
    189,894.48x = 261,975.24 × 109,302.72
  4. Step 4: Simplify right side
    189,894.48x = 28,634,606,304.65
  5. Step 5: Solve for x
    x = 28,634,606,304.65/189,894.48
  6. Step 6: Final answer
    x = 150,792.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.