Home / 145,812.72-201,218.94-82,149.15

Finding the Fourth Proportional to 145,812.72, 201,218.94 and 82,149.15

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Solution

The fourth proportional to 145,812.72, 201,218.94 and 82,149.15 is: 113,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,812.72 : 201,218.94 = 82,149.15 : x
  2. Step 2: Convert to fraction form
    145,812.72/201,218.94 = 82,149.15/x
  3. Step 3: Cross multiply
    145,812.72x = 201,218.94 × 82,149.15
  4. Step 4: Simplify right side
    145,812.72x = 16,529,964,884.90
  5. Step 5: Solve for x
    x = 16,529,964,884.90/145,812.72
  6. Step 6: Final answer
    x = 113,364.35

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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.