Home / 127,653.12-176,264.64-82,353.60

Finding the Fourth Proportional to 127,653.12, 176,264.64 and 82,353.60

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Solution

The fourth proportional to 127,653.12, 176,264.64 and 82,353.60 is: 113,714.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,653.12 : 176,264.64 = 82,353.60 : x
  2. Step 2: Convert to fraction form
    127,653.12/176,264.64 = 82,353.60/x
  3. Step 3: Cross multiply
    127,653.12x = 176,264.64 × 82,353.60
  4. Step 4: Simplify right side
    127,653.12x = 14,516,027,656.70
  5. Step 5: Solve for x
    x = 14,516,027,656.70/127,653.12
  6. Step 6: Final answer
    x = 113,714.63

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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.