Home / 101,389.07-152,081.93-30,311.87

Finding the Fourth Proportional to 101,389.07, 152,081.93 and 30,311.87

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Solution

The fourth proportional to 101,389.07, 152,081.93 and 30,311.87 is: 45,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,389.07 : 152,081.93 = 30,311.87 : x
  2. Step 2: Convert to fraction form
    101,389.07/152,081.93 = 30,311.87/x
  3. Step 3: Cross multiply
    101,389.07x = 152,081.93 × 30,311.87
  4. Step 4: Simplify right side
    101,389.07x = 4,609,888,147.49
  5. Step 5: Solve for x
    x = 4,609,888,147.49/101,389.07
  6. Step 6: Final answer
    x = 45,467.31

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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.