Home / 135,315.20-202,985.60-36,819.20

Finding the Fourth Proportional to 135,315.20, 202,985.60 and 36,819.20

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Solution

The fourth proportional to 135,315.20, 202,985.60 and 36,819.20 is: 55,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,315.20 : 202,985.60 = 36,819.20 : x
  2. Step 2: Convert to fraction form
    135,315.20/202,985.60 = 36,819.20/x
  3. Step 3: Cross multiply
    135,315.20x = 202,985.60 × 36,819.20
  4. Step 4: Simplify right side
    135,315.20x = 7,473,767,403.52
  5. Step 5: Solve for x
    x = 7,473,767,403.52/135,315.20
  6. Step 6: Final answer
    x = 55,232.28

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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.