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Finding the Fourth Proportional to 145,474.76, 200,757.78 and 85,050.44

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Solution

The fourth proportional to 145,474.76, 200,757.78 and 85,050.44 is: 117,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,474.76 : 200,757.78 = 85,050.44 : x
  2. Step 2: Convert to fraction form
    145,474.76/200,757.78 = 85,050.44/x
  3. Step 3: Cross multiply
    145,474.76x = 200,757.78 × 85,050.44
  4. Step 4: Simplify right side
    145,474.76x = 17,074,537,522.42
  5. Step 5: Solve for x
    x = 17,074,537,522.42/145,474.76
  6. Step 6: Final answer
    x = 117,371.13

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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.