Home / 127,115.30-190,640.95-52,256.32

Finding the Fourth Proportional to 127,115.30, 190,640.95 and 52,256.32

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Solution

The fourth proportional to 127,115.30, 190,640.95 and 52,256.32 is: 78,371.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,115.30 : 190,640.95 = 52,256.32 : x
  2. Step 2: Convert to fraction form
    127,115.30/190,640.95 = 52,256.32/x
  3. Step 3: Cross multiply
    127,115.30x = 190,640.95 × 52,256.32
  4. Step 4: Simplify right side
    127,115.30x = 9,962,194,488.30
  5. Step 5: Solve for x
    x = 9,962,194,488.30/127,115.30
  6. Step 6: Final answer
    x = 78,371.32

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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.