Home / 156,896.56-235,287.89-85,871.66

Finding the Fourth Proportional to 156,896.56, 235,287.89 and 85,871.66

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Solution

The fourth proportional to 156,896.56, 235,287.89 and 85,871.66 is: 128,776.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,896.56 : 235,287.89 = 85,871.66 : x
  2. Step 2: Convert to fraction form
    156,896.56/235,287.89 = 85,871.66/x
  3. Step 3: Cross multiply
    156,896.56x = 235,287.89 × 85,871.66
  4. Step 4: Simplify right side
    156,896.56x = 20,204,561,851.06
  5. Step 5: Solve for x
    x = 20,204,561,851.06/156,896.56
  6. Step 6: Final answer
    x = 128,776.32

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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.