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Finding the Fourth Proportional to 163,698.76, 225,711.06 and 112,040.77

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Solution

The fourth proportional to 163,698.76, 225,711.06 and 112,040.77 is: 154,484.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,698.76 : 225,711.06 = 112,040.77 : x
  2. Step 2: Convert to fraction form
    163,698.76/225,711.06 = 112,040.77/x
  3. Step 3: Cross multiply
    163,698.76x = 225,711.06 × 112,040.77
  4. Step 4: Simplify right side
    163,698.76x = 25,288,840,959.92
  5. Step 5: Solve for x
    x = 25,288,840,959.92/163,698.76
  6. Step 6: Final answer
    x = 154,484.01

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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.