Home / 156,245.37-234,054.59-71,888.01

Finding the Fourth Proportional to 156,245.37, 234,054.59 and 71,888.01

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Solution

The fourth proportional to 156,245.37, 234,054.59 and 71,888.01 is: 107,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,245.37 : 234,054.59 = 71,888.01 : x
  2. Step 2: Convert to fraction form
    156,245.37/234,054.59 = 71,888.01/x
  3. Step 3: Cross multiply
    156,245.37x = 234,054.59 × 71,888.01
  4. Step 4: Simplify right side
    156,245.37x = 16,825,718,347.03
  5. Step 5: Solve for x
    x = 16,825,718,347.03/156,245.37
  6. Step 6: Final answer
    x = 107,687.79

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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.