Home / 110,129.40-165,237.30-40,015.80

Finding the Fourth Proportional to 110,129.40, 165,237.30 and 40,015.80

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Solution

The fourth proportional to 110,129.40, 165,237.30 and 40,015.80 is: 60,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,129.40 : 165,237.30 = 40,015.80 : x
  2. Step 2: Convert to fraction form
    110,129.40/165,237.30 = 40,015.80/x
  3. Step 3: Cross multiply
    110,129.40x = 165,237.30 × 40,015.80
  4. Step 4: Simplify right side
    110,129.40x = 6,612,102,749.34
  5. Step 5: Solve for x
    x = 6,612,102,749.34/110,129.40
  6. Step 6: Final answer
    x = 60,039.40

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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.