Home / 89,109.31-133,872.98-84,065.44

Finding the Fourth Proportional to 89,109.31, 133,872.98 and 84,065.44

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Solution

The fourth proportional to 89,109.31, 133,872.98 and 84,065.44 is: 126,295.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,109.31 : 133,872.98 = 84,065.44 : x
  2. Step 2: Convert to fraction form
    89,109.31/133,872.98 = 84,065.44/x
  3. Step 3: Cross multiply
    89,109.31x = 133,872.98 × 84,065.44
  4. Step 4: Simplify right side
    89,109.31x = 11,254,089,878.12
  5. Step 5: Solve for x
    x = 11,254,089,878.12/89,109.31
  6. Step 6: Final answer
    x = 126,295.34

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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.