Home / 105,947.52-146,208.78-57,549.89

Finding the Fourth Proportional to 105,947.52, 146,208.78 and 57,549.89

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Solution

The fourth proportional to 105,947.52, 146,208.78 and 57,549.89 is: 79,419.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,947.52 : 146,208.78 = 57,549.89 : x
  2. Step 2: Convert to fraction form
    105,947.52/146,208.78 = 57,549.89/x
  3. Step 3: Cross multiply
    105,947.52x = 146,208.78 × 57,549.89
  4. Step 4: Simplify right side
    105,947.52x = 8,414,299,206.03
  5. Step 5: Solve for x
    x = 8,414,299,206.03/105,947.52
  6. Step 6: Final answer
    x = 79,419.50

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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.