Home / 127,235.40-190,853.10-89,910.60

Finding the Fourth Proportional to 127,235.40, 190,853.10 and 89,910.60

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Solution

The fourth proportional to 127,235.40, 190,853.10 and 89,910.60 is: 134,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,235.40 : 190,853.10 = 89,910.60 : x
  2. Step 2: Convert to fraction form
    127,235.40/190,853.10 = 89,910.60/x
  3. Step 3: Cross multiply
    127,235.40x = 190,853.10 × 89,910.60
  4. Step 4: Simplify right side
    127,235.40x = 17,159,716,732.86
  5. Step 5: Solve for x
    x = 17,159,716,732.86/127,235.40
  6. Step 6: Final answer
    x = 134,865.90

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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.