Home / 170,856.30-256,284.45-76,086.30

Finding the Fourth Proportional to 170,856.30, 256,284.45 and 76,086.30

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Solution

The fourth proportional to 170,856.30, 256,284.45 and 76,086.30 is: 114,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,856.30 : 256,284.45 = 76,086.30 : x
  2. Step 2: Convert to fraction form
    170,856.30/256,284.45 = 76,086.30/x
  3. Step 3: Cross multiply
    170,856.30x = 256,284.45 × 76,086.30
  4. Step 4: Simplify right side
    170,856.30x = 19,499,735,548.04
  5. Step 5: Solve for x
    x = 19,499,735,548.04/170,856.30
  6. Step 6: Final answer
    x = 114,129.45

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1.5x scale

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.