Home / 127,897.22-176,442.12-121,968.02

Finding the Fourth Proportional to 127,897.22, 176,442.12 and 121,968.02

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Solution

The fourth proportional to 127,897.22, 176,442.12 and 121,968.02 is: 168,262.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,897.22 : 176,442.12 = 121,968.02 : x
  2. Step 2: Convert to fraction form
    127,897.22/176,442.12 = 121,968.02/x
  3. Step 3: Cross multiply
    127,897.22x = 176,442.12 × 121,968.02
  4. Step 4: Simplify right side
    127,897.22x = 21,520,296,021.00
  5. Step 5: Solve for x
    x = 21,520,296,021.00/127,897.22
  6. Step 6: Final answer
    x = 168,262.42

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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.