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Finding the Fourth Proportional to 127,302.67, 190,929.40 and 120,980.42

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Solution

The fourth proportional to 127,302.67, 190,929.40 and 120,980.42 is: 181,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,302.67 : 190,929.40 = 120,980.42 : x
  2. Step 2: Convert to fraction form
    127,302.67/190,929.40 = 120,980.42/x
  3. Step 3: Cross multiply
    127,302.67x = 190,929.40 × 120,980.42
  4. Step 4: Simplify right side
    127,302.67x = 23,098,717,442.80
  5. Step 5: Solve for x
    x = 23,098,717,442.80/127,302.67
  6. Step 6: Final answer
    x = 181,447.24

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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.