Home / 170,864.30-256,555.65-131,465.90

Finding the Fourth Proportional to 170,864.30, 256,555.65 and 131,465.90

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Solution

The fourth proportional to 170,864.30, 256,555.65 and 131,465.90 is: 197,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,864.30 : 256,555.65 = 131,465.90 : x
  2. Step 2: Convert to fraction form
    170,864.30/256,555.65 = 131,465.90/x
  3. Step 3: Cross multiply
    170,864.30x = 256,555.65 × 131,465.90
  4. Step 4: Simplify right side
    170,864.30x = 33,728,319,427.34
  5. Step 5: Solve for x
    x = 33,728,319,427.34/170,864.30
  6. Step 6: Final answer
    x = 197,398.28

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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.