Home / 101,739.88-152,609.34-31,619.08

Finding the Fourth Proportional to 101,739.88, 152,609.34 and 31,619.08

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Solution

The fourth proportional to 101,739.88, 152,609.34 and 31,619.08 is: 47,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,739.88 : 152,609.34 = 31,619.08 : x
  2. Step 2: Convert to fraction form
    101,739.88/152,609.34 = 31,619.08/x
  3. Step 3: Cross multiply
    101,739.88x = 152,609.34 × 31,619.08
  4. Step 4: Simplify right side
    101,739.88x = 4,825,366,930.21
  5. Step 5: Solve for x
    x = 4,825,366,930.21/101,739.88
  6. Step 6: Final answer
    x = 47,428.47

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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.