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Finding the Fourth Proportional to 127,577.80, 190,929.30 and 88,211.80

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Solution

The fourth proportional to 127,577.80, 190,929.30 and 88,211.80 is: 132,015.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,577.80 : 190,929.30 = 88,211.80 : x
  2. Step 2: Convert to fraction form
    127,577.80/190,929.30 = 88,211.80/x
  3. Step 3: Cross multiply
    127,577.80x = 190,929.30 × 88,211.80
  4. Step 4: Simplify right side
    127,577.80x = 16,842,217,225.74
  5. Step 5: Solve for x
    x = 16,842,217,225.74/127,577.80
  6. Step 6: Final answer
    x = 132,015.27

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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.