Home / 127,002.30-190,309.05-120,003.90

Finding the Fourth Proportional to 127,002.30, 190,309.05 and 120,003.90

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Solution

The fourth proportional to 127,002.30, 190,309.05 and 120,003.90 is: 179,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,002.30 : 190,309.05 = 120,003.90 : x
  2. Step 2: Convert to fraction form
    127,002.30/190,309.05 = 120,003.90/x
  3. Step 3: Cross multiply
    127,002.30x = 190,309.05 × 120,003.90
  4. Step 4: Simplify right side
    127,002.30x = 22,837,828,205.30
  5. Step 5: Solve for x
    x = 22,837,828,205.30/127,002.30
  6. Step 6: Final answer
    x = 179,822.16

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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.