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Finding the Fourth Proportional to 165,009.80, 247,077.30 and 130,017.80

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Solution

The fourth proportional to 165,009.80, 247,077.30 and 130,017.80 is: 194,682.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,009.80 : 247,077.30 = 130,017.80 : x
  2. Step 2: Convert to fraction form
    165,009.80/247,077.30 = 130,017.80/x
  3. Step 3: Cross multiply
    165,009.80x = 247,077.30 × 130,017.80
  4. Step 4: Simplify right side
    165,009.80x = 32,124,446,975.94
  5. Step 5: Solve for x
    x = 32,124,446,975.94/165,009.80
  6. Step 6: Final answer
    x = 194,682.06

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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.