Home / 135,965.76-187,631.48-75,536.52

Finding the Fourth Proportional to 135,965.76, 187,631.48 and 75,536.52

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Solution

The fourth proportional to 135,965.76, 187,631.48 and 75,536.52 is: 104,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,965.76 : 187,631.48 = 75,536.52 : x
  2. Step 2: Convert to fraction form
    135,965.76/187,631.48 = 75,536.52/x
  3. Step 3: Cross multiply
    135,965.76x = 187,631.48 × 75,536.52
  4. Step 4: Simplify right side
    135,965.76x = 14,173,029,041.65
  5. Step 5: Solve for x
    x = 14,173,029,041.65/135,965.76
  6. Step 6: Final answer
    x = 104,239.69

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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.