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Finding the Fourth Proportional to 177,603.84, 245,118.96 and 105,986.88

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Solution

The fourth proportional to 177,603.84, 245,118.96 and 105,986.88 is: 146,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,603.84 : 245,118.96 = 105,986.88 : x
  2. Step 2: Convert to fraction form
    177,603.84/245,118.96 = 105,986.88/x
  3. Step 3: Cross multiply
    177,603.84x = 245,118.96 × 105,986.88
  4. Step 4: Simplify right side
    177,603.84x = 25,979,393,799.24
  5. Step 5: Solve for x
    x = 25,979,393,799.24/177,603.84
  6. Step 6: Final answer
    x = 146,277.21

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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.