Home / 101,100.12-151,743.96-51,215.46

Finding the Fourth Proportional to 101,100.12, 151,743.96 and 51,215.46

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Solution

The fourth proportional to 101,100.12, 151,743.96 and 51,215.46 is: 76,870.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,100.12 : 151,743.96 = 51,215.46 : x
  2. Step 2: Convert to fraction form
    101,100.12/151,743.96 = 51,215.46/x
  3. Step 3: Cross multiply
    101,100.12x = 151,743.96 × 51,215.46
  4. Step 4: Simplify right side
    101,100.12x = 7,771,636,713.62
  5. Step 5: Solve for x
    x = 7,771,636,713.62/101,100.12
  6. Step 6: Final answer
    x = 76,870.70

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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.