Home / 262,553.10-393,926.85-85,065.90

Finding the Fourth Proportional to 262,553.10, 393,926.85 and 85,065.90

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Solution

The fourth proportional to 262,553.10, 393,926.85 and 85,065.90 is: 127,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,553.10 : 393,926.85 = 85,065.90 : x
  2. Step 2: Convert to fraction form
    262,553.10/393,926.85 = 85,065.90/x
  3. Step 3: Cross multiply
    262,553.10x = 393,926.85 × 85,065.90
  4. Step 4: Simplify right side
    262,553.10x = 33,509,742,029.42
  5. Step 5: Solve for x
    x = 33,509,742,029.42/262,553.10
  6. Step 6: Final answer
    x = 127,630.34

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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.