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Finding the Fourth Proportional to 163,602.88, 225,766.14 and 91,005.40

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Solution

The fourth proportional to 163,602.88, 225,766.14 and 91,005.40 is: 125,584.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,602.88 : 225,766.14 = 91,005.40 : x
  2. Step 2: Convert to fraction form
    163,602.88/225,766.14 = 91,005.40/x
  3. Step 3: Cross multiply
    163,602.88x = 225,766.14 × 91,005.40
  4. Step 4: Simplify right side
    163,602.88x = 20,545,937,877.16
  5. Step 5: Solve for x
    x = 20,545,937,877.16/163,602.88
  6. Step 6: Final answer
    x = 125,584.21

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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.