Home / 134,254.30-201,208.65-81,607.90

Finding the Fourth Proportional to 134,254.30, 201,208.65 and 81,607.90

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Solution

The fourth proportional to 134,254.30, 201,208.65 and 81,607.90 is: 122,306.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,254.30 : 201,208.65 = 81,607.90 : x
  2. Step 2: Convert to fraction form
    134,254.30/201,208.65 = 81,607.90/x
  3. Step 3: Cross multiply
    134,254.30x = 201,208.65 × 81,607.90
  4. Step 4: Simplify right side
    134,254.30x = 16,420,215,388.34
  5. Step 5: Solve for x
    x = 16,420,215,388.34/134,254.30
  6. Step 6: Final answer
    x = 122,306.81

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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.