Home / 145,090.08-200,351.97-90,735.42

Finding the Fourth Proportional to 145,090.08, 200,351.97 and 90,735.42

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Solution

The fourth proportional to 145,090.08, 200,351.97 and 90,735.42 is: 125,294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,090.08 : 200,351.97 = 90,735.42 : x
  2. Step 2: Convert to fraction form
    145,090.08/200,351.97 = 90,735.42/x
  3. Step 3: Cross multiply
    145,090.08x = 200,351.97 × 90,735.42
  4. Step 4: Simplify right side
    145,090.08x = 18,179,020,145.78
  5. Step 5: Solve for x
    x = 18,179,020,145.78/145,090.08
  6. Step 6: Final answer
    x = 125,294.71

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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.