Home / 105,625.04-145,760.04-57,876.08

Finding the Fourth Proportional to 105,625.04, 145,760.04 and 57,876.08

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Solution

The fourth proportional to 105,625.04, 145,760.04 and 57,876.08 is: 79,867.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,625.04 : 145,760.04 = 57,876.08 : x
  2. Step 2: Convert to fraction form
    105,625.04/145,760.04 = 57,876.08/x
  3. Step 3: Cross multiply
    105,625.04x = 145,760.04 × 57,876.08
  4. Step 4: Simplify right side
    105,625.04x = 8,436,019,735.84
  5. Step 5: Solve for x
    x = 8,436,019,735.84/105,625.04
  6. Step 6: Final answer
    x = 79,867.61

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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.