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Finding the Fourth Proportional to 151,698.69, 227,687.79 and 76,871.84

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Solution

The fourth proportional to 151,698.69, 227,687.79 and 76,871.84 is: 115,378.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,698.69 : 227,687.79 = 76,871.84 : x
  2. Step 2: Convert to fraction form
    151,698.69/227,687.79 = 76,871.84/x
  3. Step 3: Cross multiply
    151,698.69x = 227,687.79 × 76,871.84
  4. Step 4: Simplify right side
    151,698.69x = 17,502,779,362.83
  5. Step 5: Solve for x
    x = 17,502,779,362.83/151,698.69
  6. Step 6: Final answer
    x = 115,378.58

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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.