Home / 132,980.34-183,512.91-85,233.69

Finding the Fourth Proportional to 132,980.34, 183,512.91 and 85,233.69

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Solution

The fourth proportional to 132,980.34, 183,512.91 and 85,233.69 is: 117,622.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,980.34 : 183,512.91 = 85,233.69 : x
  2. Step 2: Convert to fraction form
    132,980.34/183,512.91 = 85,233.69/x
  3. Step 3: Cross multiply
    132,980.34x = 183,512.91 × 85,233.69
  4. Step 4: Simplify right side
    132,980.34x = 15,641,482,481.94
  5. Step 5: Solve for x
    x = 15,641,482,481.94/132,980.34
  6. Step 6: Final answer
    x = 117,622.52

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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.