Home / 156,971.13-235,377.31-51,755.37

Finding the Fourth Proportional to 156,971.13, 235,377.31 and 51,755.37

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Solution

The fourth proportional to 156,971.13, 235,377.31 and 51,755.37 is: 77,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.13 : 235,377.31 = 51,755.37 : x
  2. Step 2: Convert to fraction form
    156,971.13/235,377.31 = 51,755.37/x
  3. Step 3: Cross multiply
    156,971.13x = 235,377.31 × 51,755.37
  4. Step 4: Simplify right side
    156,971.13x = 12,182,039,768.65
  5. Step 5: Solve for x
    x = 12,182,039,768.65/156,971.13
  6. Step 6: Final answer
    x = 77,606.88

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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.