Home / 105,918.78-146,170.47-58,173.15

Finding the Fourth Proportional to 105,918.78, 146,170.47 and 58,173.15

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Solution

The fourth proportional to 105,918.78, 146,170.47 and 58,173.15 is: 80,280.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,918.78 : 146,170.47 = 58,173.15 : x
  2. Step 2: Convert to fraction form
    105,918.78/146,170.47 = 58,173.15/x
  3. Step 3: Cross multiply
    105,918.78x = 146,170.47 × 58,173.15
  4. Step 4: Simplify right side
    105,918.78x = 8,503,196,676.88
  5. Step 5: Solve for x
    x = 8,503,196,676.88/105,918.78
  6. Step 6: Final answer
    x = 80,280.35

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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.