Home / 202,880.16-279,942.48-131,263.20

Finding the Fourth Proportional to 202,880.16, 279,942.48 and 131,263.20

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Solution

The fourth proportional to 202,880.16, 279,942.48 and 131,263.20 is: 181,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,880.16 : 279,942.48 = 131,263.20 : x
  2. Step 2: Convert to fraction form
    202,880.16/279,942.48 = 131,263.20/x
  3. Step 3: Cross multiply
    202,880.16x = 279,942.48 × 131,263.20
  4. Step 4: Simplify right side
    202,880.16x = 36,746,145,740.74
  5. Step 5: Solve for x
    x = 36,746,145,740.74/202,880.16
  6. Step 6: Final answer
    x = 181,122.42

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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.