Home / 108,966.78-163,538.46-56,391.30

Finding the Fourth Proportional to 108,966.78, 163,538.46 and 56,391.30

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Solution

The fourth proportional to 108,966.78, 163,538.46 and 56,391.30 is: 84,632.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,966.78 : 163,538.46 = 56,391.30 : x
  2. Step 2: Convert to fraction form
    108,966.78/163,538.46 = 56,391.30/x
  3. Step 3: Cross multiply
    108,966.78x = 163,538.46 × 56,391.30
  4. Step 4: Simplify right side
    108,966.78x = 9,222,146,359.40
  5. Step 5: Solve for x
    x = 9,222,146,359.40/108,966.78
  6. Step 6: Final answer
    x = 84,632.64

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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.