Home / 171,511.22-257,354.58-81,655.52

Finding the Fourth Proportional to 171,511.22, 257,354.58 and 81,655.52

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Solution

The fourth proportional to 171,511.22, 257,354.58 and 81,655.52 is: 122,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,511.22 : 257,354.58 = 81,655.52 : x
  2. Step 2: Convert to fraction form
    171,511.22/257,354.58 = 81,655.52/x
  3. Step 3: Cross multiply
    171,511.22x = 257,354.58 × 81,655.52
  4. Step 4: Simplify right side
    171,511.22x = 21,014,422,054.28
  5. Step 5: Solve for x
    x = 21,014,422,054.28/171,511.22
  6. Step 6: Final answer
    x = 122,525.06

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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.