Home / 135,320.50-202,981.60-35,479.80

Finding the Fourth Proportional to 135,320.50, 202,981.60 and 35,479.80

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Solution

The fourth proportional to 135,320.50, 202,981.60 and 35,479.80 is: 53,219.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,320.50 : 202,981.60 = 35,479.80 : x
  2. Step 2: Convert to fraction form
    135,320.50/202,981.60 = 35,479.80/x
  3. Step 3: Cross multiply
    135,320.50x = 202,981.60 × 35,479.80
  4. Step 4: Simplify right side
    135,320.50x = 7,201,746,571.68
  5. Step 5: Solve for x
    x = 7,201,746,571.68/135,320.50
  6. Step 6: Final answer
    x = 53,219.92

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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.