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Finding the Fourth Proportional to 127,166.10, 190,421.10 and 100,922.10

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Solution

The fourth proportional to 127,166.10, 190,421.10 and 100,922.10 is: 151,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,166.10 : 190,421.10 = 100,922.10 : x
  2. Step 2: Convert to fraction form
    127,166.10/190,421.10 = 100,922.10/x
  3. Step 3: Cross multiply
    127,166.10x = 190,421.10 × 100,922.10
  4. Step 4: Simplify right side
    127,166.10x = 19,217,697,296.31
  5. Step 5: Solve for x
    x = 19,217,697,296.31/127,166.10
  6. Step 6: Final answer
    x = 151,122.80

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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.