Home / 170,778.90-256,072.35-65,601.30

Finding the Fourth Proportional to 170,778.90, 256,072.35 and 65,601.30

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Solution

The fourth proportional to 170,778.90, 256,072.35 and 65,601.30 is: 98,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,778.90 : 256,072.35 = 65,601.30 : x
  2. Step 2: Convert to fraction form
    170,778.90/256,072.35 = 65,601.30/x
  3. Step 3: Cross multiply
    170,778.90x = 256,072.35 × 65,601.30
  4. Step 4: Simplify right side
    170,778.90x = 16,798,679,054.06
  5. Step 5: Solve for x
    x = 16,798,679,054.06/170,778.90
  6. Step 6: Final answer
    x = 98,365.07

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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.