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Finding the Fourth Proportional to 163,289.68, 225,339.59 and 91,669.84

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Solution

The fourth proportional to 163,289.68, 225,339.59 and 91,669.84 is: 126,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,289.68 : 225,339.59 = 91,669.84 : x
  2. Step 2: Convert to fraction form
    163,289.68/225,339.59 = 91,669.84/x
  3. Step 3: Cross multiply
    163,289.68x = 225,339.59 × 91,669.84
  4. Step 4: Simplify right side
    163,289.68x = 20,656,843,931.79
  5. Step 5: Solve for x
    x = 20,656,843,931.79/163,289.68
  6. Step 6: Final answer
    x = 126,504.28

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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.