Home / 266,172.10-398,925.89-133,090.42

Finding the Fourth Proportional to 266,172.10, 398,925.89 and 133,090.42

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Solution

The fourth proportional to 266,172.10, 398,925.89 and 133,090.42 is: 199,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,172.10 : 398,925.89 = 133,090.42 : x
  2. Step 2: Convert to fraction form
    266,172.10/398,925.89 = 133,090.42/x
  3. Step 3: Cross multiply
    266,172.10x = 398,925.89 × 133,090.42
  4. Step 4: Simplify right side
    266,172.10x = 53,093,212,336.99
  5. Step 5: Solve for x
    x = 53,093,212,336.99/266,172.10
  6. Step 6: Final answer
    x = 199,469.49

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1.5x scale

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.