Home / 145,747.08-201,131.64-82,085.94

Finding the Fourth Proportional to 145,747.08, 201,131.64 and 82,085.94

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Solution

The fourth proportional to 145,747.08, 201,131.64 and 82,085.94 is: 113,278.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,747.08 : 201,131.64 = 82,085.94 : x
  2. Step 2: Convert to fraction form
    145,747.08/201,131.64 = 82,085.94/x
  3. Step 3: Cross multiply
    145,747.08x = 201,131.64 × 82,085.94
  4. Step 4: Simplify right side
    145,747.08x = 16,510,079,733.14
  5. Step 5: Solve for x
    x = 16,510,079,733.14/145,747.08
  6. Step 6: Final answer
    x = 113,278.97

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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.