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Finding the Fourth Proportional to 163,699.76, 225,712.44 and 112,041.76

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Solution

The fourth proportional to 163,699.76, 225,712.44 and 112,041.76 is: 154,485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,699.76 : 225,712.44 = 112,041.76 : x
  2. Step 2: Convert to fraction form
    163,699.76/225,712.44 = 112,041.76/x
  3. Step 3: Cross multiply
    163,699.76x = 225,712.44 × 112,041.76
  4. Step 4: Simplify right side
    163,699.76x = 25,289,219,031.49
  5. Step 5: Solve for x
    x = 25,289,219,031.49/163,699.76
  6. Step 6: Final answer
    x = 154,485.38

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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.