Home / 541,438.29-812,155.21-136,631.41

Finding the Fourth Proportional to 541,438.29, 812,155.21 and 136,631.41

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Solution

The fourth proportional to 541,438.29, 812,155.21 and 136,631.41 is: 204,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,438.29 : 812,155.21 = 136,631.41 : x
  2. Step 2: Convert to fraction form
    541,438.29/812,155.21 = 136,631.41/x
  3. Step 3: Cross multiply
    541,438.29x = 812,155.21 × 136,631.41
  4. Step 4: Simplify right side
    541,438.29x = 110,965,909,109.18
  5. Step 5: Solve for x
    x = 110,965,909,109.18/541,438.29
  6. Step 6: Final answer
    x = 204,946.55

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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.