Home / 145,972.22-201,441.68-82,310.01

Finding the Fourth Proportional to 145,972.22, 201,441.68 and 82,310.01

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Solution

The fourth proportional to 145,972.22, 201,441.68 and 82,310.01 is: 113,587.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.22 : 201,441.68 = 82,310.01 : x
  2. Step 2: Convert to fraction form
    145,972.22/201,441.68 = 82,310.01/x
  3. Step 3: Cross multiply
    145,972.22x = 201,441.68 × 82,310.01
  4. Step 4: Simplify right side
    145,972.22x = 16,580,666,900.99
  5. Step 5: Solve for x
    x = 16,580,666,900.99/145,972.22
  6. Step 6: Final answer
    x = 113,587.83

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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.