Home / 135,548.20-187,053.72-75,118.36

Finding the Fourth Proportional to 135,548.20, 187,053.72 and 75,118.36

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Solution

The fourth proportional to 135,548.20, 187,053.72 and 75,118.36 is: 103,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,548.20 : 187,053.72 = 75,118.36 : x
  2. Step 2: Convert to fraction form
    135,548.20/187,053.72 = 75,118.36/x
  3. Step 3: Cross multiply
    135,548.20x = 187,053.72 × 75,118.36
  4. Step 4: Simplify right side
    135,548.20x = 14,051,168,678.30
  5. Step 5: Solve for x
    x = 14,051,168,678.30/135,548.20
  6. Step 6: Final answer
    x = 103,661.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.