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Finding the Fourth Proportional to 127,551.80, 191,097.30 and 109,119.80

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Solution

The fourth proportional to 127,551.80, 191,097.30 and 109,119.80 is: 163,482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,551.80 : 191,097.30 = 109,119.80 : x
  2. Step 2: Convert to fraction form
    127,551.80/191,097.30 = 109,119.80/x
  3. Step 3: Cross multiply
    127,551.80x = 191,097.30 × 109,119.80
  4. Step 4: Simplify right side
    127,551.80x = 20,852,499,156.54
  5. Step 5: Solve for x
    x = 20,852,499,156.54/127,551.80
  6. Step 6: Final answer
    x = 163,482.59

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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.