Home / 127,232.64-190,819.80-57,132

Finding the Fourth Proportional to 127,232.64, 190,819.80 and 57,132

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Solution

The fourth proportional to 127,232.64, 190,819.80 and 57,132 is: 85,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,232.64 : 190,819.80 = 57,132 : x
  2. Step 2: Convert to fraction form
    127,232.64/190,819.80 = 57,132/x
  3. Step 3: Cross multiply
    127,232.64x = 190,819.80 × 57,132
  4. Step 4: Simplify right side
    127,232.64x = 10,901,916,813.60
  5. Step 5: Solve for x
    x = 10,901,916,813.60/127,232.64
  6. Step 6: Final answer
    x = 85,684.91

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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.