Home / 171,502.10-257,340.89-81,646.37

Finding the Fourth Proportional to 171,502.10, 257,340.89 and 81,646.37

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Solution

The fourth proportional to 171,502.10, 257,340.89 and 81,646.37 is: 122,511.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,502.10 : 257,340.89 = 81,646.37 : x
  2. Step 2: Convert to fraction form
    171,502.10/257,340.89 = 81,646.37/x
  3. Step 3: Cross multiply
    171,502.10x = 257,340.89 × 81,646.37
  4. Step 4: Simplify right side
    171,502.10x = 21,010,948,438.48
  5. Step 5: Solve for x
    x = 21,010,948,438.48/171,502.10
  6. Step 6: Final answer
    x = 122,511.32

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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.