Home / 108,865.52-163,361.28-45,680

Finding the Fourth Proportional to 108,865.52, 163,361.28 and 45,680

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Solution

The fourth proportional to 108,865.52, 163,361.28 and 45,680 is: 68,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,865.52 : 163,361.28 = 45,680 : x
  2. Step 2: Convert to fraction form
    108,865.52/163,361.28 = 45,680/x
  3. Step 3: Cross multiply
    108,865.52x = 163,361.28 × 45,680
  4. Step 4: Simplify right side
    108,865.52x = 7,462,343,270.40
  5. Step 5: Solve for x
    x = 7,462,343,270.40/108,865.52
  6. Step 6: Final answer
    x = 68,546.43

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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.