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Finding the Fourth Proportional to 108,999.30, 163,504.35 and 56,511.30

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Solution

The fourth proportional to 108,999.30, 163,504.35 and 56,511.30 is: 84,769.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,999.30 : 163,504.35 = 56,511.30 : x
  2. Step 2: Convert to fraction form
    108,999.30/163,504.35 = 56,511.30/x
  3. Step 3: Cross multiply
    108,999.30x = 163,504.35 × 56,511.30
  4. Step 4: Simplify right side
    108,999.30x = 9,239,843,374.16
  5. Step 5: Solve for x
    x = 9,239,843,374.16/108,999.30
  6. Step 6: Final answer
    x = 84,769.75

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1.5x scale

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.