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Finding the Fourth Proportional to 163,444.70, 225,528.64 and 91,810.87

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Solution

The fourth proportional to 163,444.70, 225,528.64 and 91,810.87 is: 126,684.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,444.70 : 225,528.64 = 91,810.87 : x
  2. Step 2: Convert to fraction form
    163,444.70/225,528.64 = 91,810.87/x
  3. Step 3: Cross multiply
    163,444.70x = 225,528.64 × 91,810.87
  4. Step 4: Simplify right side
    163,444.70x = 20,705,979,854.97
  5. Step 5: Solve for x
    x = 20,705,979,854.97/163,444.70
  6. Step 6: Final answer
    x = 126,684.92

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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.