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Finding the Fourth Proportional to 163,271.30, 225,293.98 and 90,664.32

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Solution

The fourth proportional to 163,271.30, 225,293.98 and 90,664.32 is: 125,105.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,271.30 : 225,293.98 = 90,664.32 : x
  2. Step 2: Convert to fraction form
    163,271.30/225,293.98 = 90,664.32/x
  3. Step 3: Cross multiply
    163,271.30x = 225,293.98 × 90,664.32
  4. Step 4: Simplify right side
    163,271.30x = 20,426,125,496.79
  5. Step 5: Solve for x
    x = 20,426,125,496.79/163,271.30
  6. Step 6: Final answer
    x = 125,105.43

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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.