Home / 254,583.27-381,916.11-86,113.63

Finding the Fourth Proportional to 254,583.27, 381,916.11 and 86,113.63

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Solution

The fourth proportional to 254,583.27, 381,916.11 and 86,113.63 is: 129,184.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,583.27 : 381,916.11 = 86,113.63 : x
  2. Step 2: Convert to fraction form
    254,583.27/381,916.11 = 86,113.63/x
  3. Step 3: Cross multiply
    254,583.27x = 381,916.11 × 86,113.63
  4. Step 4: Simplify right side
    254,583.27x = 32,888,183,387.90
  5. Step 5: Solve for x
    x = 32,888,183,387.90/254,583.27
  6. Step 6: Final answer
    x = 129,184.39

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1.5x scale

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.