Home / 257,977.10-387,012.14-106,147.37

Finding the Fourth Proportional to 257,977.10, 387,012.14 and 106,147.37

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Solution

The fourth proportional to 257,977.10, 387,012.14 and 106,147.37 is: 159,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,977.10 : 387,012.14 = 106,147.37 : x
  2. Step 2: Convert to fraction form
    257,977.10/387,012.14 = 106,147.37/x
  3. Step 3: Cross multiply
    257,977.10x = 387,012.14 × 106,147.37
  4. Step 4: Simplify right side
    257,977.10x = 41,080,318,353.27
  5. Step 5: Solve for x
    x = 41,080,318,353.27/257,977.10
  6. Step 6: Final answer
    x = 159,240.17

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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.