Home / 145,522.25-200,790.46-85,081.20

Finding the Fourth Proportional to 145,522.25, 200,790.46 and 85,081.20

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Solution

The fourth proportional to 145,522.25, 200,790.46 and 85,081.20 is: 117,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,522.25 : 200,790.46 = 85,081.20 : x
  2. Step 2: Convert to fraction form
    145,522.25/200,790.46 = 85,081.20/x
  3. Step 3: Cross multiply
    145,522.25x = 200,790.46 × 85,081.20
  4. Step 4: Simplify right side
    145,522.25x = 17,083,493,285.35
  5. Step 5: Solve for x
    x = 17,083,493,285.35/145,522.25
  6. Step 6: Final answer
    x = 117,394.37

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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.