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Finding the Fourth Proportional to 163,339.65, 225,393.03 and 91,703.25

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Solution

The fourth proportional to 163,339.65, 225,393.03 and 91,703.25 is: 126,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,339.65 : 225,393.03 = 91,703.25 : x
  2. Step 2: Convert to fraction form
    163,339.65/225,393.03 = 91,703.25/x
  3. Step 3: Cross multiply
    163,339.65x = 225,393.03 × 91,703.25
  4. Step 4: Simplify right side
    163,339.65x = 20,669,273,378.35
  5. Step 5: Solve for x
    x = 20,669,273,378.35/163,339.65
  6. Step 6: Final answer
    x = 126,541.68

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1.5x scale

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.