Home / 132,431.58-182,795.08-87,144.48

Finding the Fourth Proportional to 132,431.58, 182,795.08 and 87,144.48

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Solution

The fourth proportional to 132,431.58, 182,795.08 and 87,144.48 is: 120,285.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,431.58 : 182,795.08 = 87,144.48 : x
  2. Step 2: Convert to fraction form
    132,431.58/182,795.08 = 87,144.48/x
  3. Step 3: Cross multiply
    132,431.58x = 182,795.08 × 87,144.48
  4. Step 4: Simplify right side
    132,431.58x = 15,929,582,193.16
  5. Step 5: Solve for x
    x = 15,929,582,193.16/132,431.58
  6. Step 6: Final answer
    x = 120,285.37

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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.