Home / 105,156.12-145,102.68-59,839.92

Finding the Fourth Proportional to 105,156.12, 145,102.68 and 59,839.92

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Solution

The fourth proportional to 105,156.12, 145,102.68 and 59,839.92 is: 82,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,156.12 : 145,102.68 = 59,839.92 : x
  2. Step 2: Convert to fraction form
    105,156.12/145,102.68 = 59,839.92/x
  3. Step 3: Cross multiply
    105,156.12x = 145,102.68 × 59,839.92
  4. Step 4: Simplify right side
    105,156.12x = 8,682,932,762.99
  5. Step 5: Solve for x
    x = 8,682,932,762.99/105,156.12
  6. Step 6: Final answer
    x = 82,571.83

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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.