Home / 165,072.24-227,289.62-128,919.72

Finding the Fourth Proportional to 165,072.24, 227,289.62 and 128,919.72

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Solution

The fourth proportional to 165,072.24, 227,289.62 and 128,919.72 is: 177,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,072.24 : 227,289.62 = 128,919.72 : x
  2. Step 2: Convert to fraction form
    165,072.24/227,289.62 = 128,919.72/x
  3. Step 3: Cross multiply
    165,072.24x = 227,289.62 × 128,919.72
  4. Step 4: Simplify right side
    165,072.24x = 29,302,113,524.71
  5. Step 5: Solve for x
    x = 29,302,113,524.71/165,072.24
  6. Step 6: Final answer
    x = 177,510.85

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1.5x scale

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.