Home / 134,643.20-201,742.56-81,893.12

Finding the Fourth Proportional to 134,643.20, 201,742.56 and 81,893.12

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Solution

The fourth proportional to 134,643.20, 201,742.56 and 81,893.12 is: 122,704.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,643.20 : 201,742.56 = 81,893.12 : x
  2. Step 2: Convert to fraction form
    134,643.20/201,742.56 = 81,893.12/x
  3. Step 3: Cross multiply
    134,643.20x = 201,742.56 × 81,893.12
  4. Step 4: Simplify right side
    134,643.20x = 16,521,327,675.19
  5. Step 5: Solve for x
    x = 16,521,327,675.19/134,643.20
  6. Step 6: Final answer
    x = 122,704.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.