Home / 100,780.14-151,186.44-34,213.26

Finding the Fourth Proportional to 100,780.14, 151,186.44 and 34,213.26

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Solution

The fourth proportional to 100,780.14, 151,186.44 and 34,213.26 is: 51,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,780.14 : 151,186.44 = 34,213.26 : x
  2. Step 2: Convert to fraction form
    100,780.14/151,186.44 = 34,213.26/x
  3. Step 3: Cross multiply
    100,780.14x = 151,186.44 × 34,213.26
  4. Step 4: Simplify right side
    100,780.14x = 5,172,580,980.19
  5. Step 5: Solve for x
    x = 5,172,580,980.19/100,780.14
  6. Step 6: Final answer
    x = 51,325.40

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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.