Home / 202,065.22-278,782.32-130,493.62

Finding the Fourth Proportional to 202,065.22, 278,782.32 and 130,493.62

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Solution

The fourth proportional to 202,065.22, 278,782.32 and 130,493.62 is: 180,037.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,065.22 : 278,782.32 = 130,493.62 : x
  2. Step 2: Convert to fraction form
    202,065.22/278,782.32 = 130,493.62/x
  3. Step 3: Cross multiply
    202,065.22x = 278,782.32 × 130,493.62
  4. Step 4: Simplify right side
    202,065.22x = 36,379,314,128.80
  5. Step 5: Solve for x
    x = 36,379,314,128.80/202,065.22
  6. Step 6: Final answer
    x = 180,037.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.