Home / 145,728.09-201,100.80-82,064.52

Finding the Fourth Proportional to 145,728.09, 201,100.80 and 82,064.52

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Solution

The fourth proportional to 145,728.09, 201,100.80 and 82,064.52 is: 113,246.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,728.09 : 201,100.80 = 82,064.52 : x
  2. Step 2: Convert to fraction form
    145,728.09/201,100.80 = 82,064.52/x
  3. Step 3: Cross multiply
    145,728.09x = 201,100.80 × 82,064.52
  4. Step 4: Simplify right side
    145,728.09x = 16,503,240,623.62
  5. Step 5: Solve for x
    x = 16,503,240,623.62/145,728.09
  6. Step 6: Final answer
    x = 113,246.81

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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.