Home / 145,665.57-201,022.26-82,005.66

Finding the Fourth Proportional to 145,665.57, 201,022.26 and 82,005.66

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Solution

The fourth proportional to 145,665.57, 201,022.26 and 82,005.66 is: 113,169.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,665.57 : 201,022.26 = 82,005.66 : x
  2. Step 2: Convert to fraction form
    145,665.57/201,022.26 = 82,005.66/x
  3. Step 3: Cross multiply
    145,665.57x = 201,022.26 × 82,005.66
  4. Step 4: Simplify right side
    145,665.57x = 16,484,963,105.99
  5. Step 5: Solve for x
    x = 16,484,963,105.99/145,665.57
  6. Step 6: Final answer
    x = 113,169.94

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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.