Home / 135,914.61-187,564.48-74,663.38

Finding the Fourth Proportional to 135,914.61, 187,564.48 and 74,663.38

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Solution

The fourth proportional to 135,914.61, 187,564.48 and 74,663.38 is: 103,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,914.61 : 187,564.48 = 74,663.38 : x
  2. Step 2: Convert to fraction form
    135,914.61/187,564.48 = 74,663.38/x
  3. Step 3: Cross multiply
    135,914.61x = 187,564.48 × 74,663.38
  4. Step 4: Simplify right side
    135,914.61x = 14,004,196,733.60
  5. Step 5: Solve for x
    x = 14,004,196,733.60/135,914.61
  6. Step 6: Final answer
    x = 103,036.73

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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.