Home / 105,126.68-145,093.62-62,687.94

Finding the Fourth Proportional to 105,126.68, 145,093.62 and 62,687.94

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Solution

The fourth proportional to 105,126.68, 145,093.62 and 62,687.94 is: 86,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,126.68 : 145,093.62 = 62,687.94 : x
  2. Step 2: Convert to fraction form
    105,126.68/145,093.62 = 62,687.94/x
  3. Step 3: Cross multiply
    105,126.68x = 145,093.62 × 62,687.94
  4. Step 4: Simplify right side
    105,126.68x = 9,095,620,144.94
  5. Step 5: Solve for x
    x = 9,095,620,144.94/105,126.68
  6. Step 6: Final answer
    x = 86,520.57

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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.