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Finding the Fourth Proportional to 163,296.98, 225,362.85 and 91,681.70

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Solution

The fourth proportional to 163,296.98, 225,362.85 and 91,681.70 is: 126,528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,296.98 : 225,362.85 = 91,681.70 : x
  2. Step 2: Convert to fraction form
    163,296.98/225,362.85 = 91,681.70/x
  3. Step 3: Cross multiply
    163,296.98x = 225,362.85 × 91,681.70
  4. Step 4: Simplify right side
    163,296.98x = 20,661,649,204.85
  5. Step 5: Solve for x
    x = 20,661,649,204.85/163,296.98
  6. Step 6: Final answer
    x = 126,528.05

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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.