Home / 171,930.90-257,896.35-142,382.10

Finding the Fourth Proportional to 171,930.90, 257,896.35 and 142,382.10

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Solution

The fourth proportional to 171,930.90, 257,896.35 and 142,382.10 is: 213,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,930.90 : 257,896.35 = 142,382.10 : x
  2. Step 2: Convert to fraction form
    171,930.90/257,896.35 = 142,382.10/x
  3. Step 3: Cross multiply
    171,930.90x = 257,896.35 × 142,382.10
  4. Step 4: Simplify right side
    171,930.90x = 36,719,823,895.34
  5. Step 5: Solve for x
    x = 36,719,823,895.34/171,930.90
  6. Step 6: Final answer
    x = 213,573.15

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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.