Home / 89,926.58-135,042.96-86,164.94

Finding the Fourth Proportional to 89,926.58, 135,042.96 and 86,164.94

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Solution

The fourth proportional to 89,926.58, 135,042.96 and 86,164.94 is: 129,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,926.58 : 135,042.96 = 86,164.94 : x
  2. Step 2: Convert to fraction form
    89,926.58/135,042.96 = 86,164.94/x
  3. Step 3: Cross multiply
    89,926.58x = 135,042.96 × 86,164.94
  4. Step 4: Simplify right side
    89,926.58x = 11,635,968,545.82
  5. Step 5: Solve for x
    x = 11,635,968,545.82/89,926.58
  6. Step 6: Final answer
    x = 129,394.10

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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.