Home / 105,878.64-146,112.81-58,135.08

Finding the Fourth Proportional to 105,878.64, 146,112.81 and 58,135.08

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Solution

The fourth proportional to 105,878.64, 146,112.81 and 58,135.08 is: 80,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,878.64 : 146,112.81 = 58,135.08 : x
  2. Step 2: Convert to fraction form
    105,878.64/146,112.81 = 58,135.08/x
  3. Step 3: Cross multiply
    105,878.64x = 146,112.81 × 58,135.08
  4. Step 4: Simplify right side
    105,878.64x = 8,494,279,898.37
  5. Step 5: Solve for x
    x = 8,494,279,898.37/105,878.64
  6. Step 6: Final answer
    x = 80,226.57

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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.