Home / 108,908.56-163,286.04-42,293.20

Finding the Fourth Proportional to 108,908.56, 163,286.04 and 42,293.20

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Solution

The fourth proportional to 108,908.56, 163,286.04 and 42,293.20 is: 63,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,908.56 : 163,286.04 = 42,293.20 : x
  2. Step 2: Convert to fraction form
    108,908.56/163,286.04 = 42,293.20/x
  3. Step 3: Cross multiply
    108,908.56x = 163,286.04 × 42,293.20
  4. Step 4: Simplify right side
    108,908.56x = 6,905,889,146.93
  5. Step 5: Solve for x
    x = 6,905,889,146.93/108,908.56
  6. Step 6: Final answer
    x = 63,409.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.