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Finding the Fourth Proportional to 108,000.72, 161,913.60 and 48,805.92

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Solution

The fourth proportional to 108,000.72, 161,913.60 and 48,805.92 is: 73,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,000.72 : 161,913.60 = 48,805.92 : x
  2. Step 2: Convert to fraction form
    108,000.72/161,913.60 = 48,805.92/x
  3. Step 3: Cross multiply
    108,000.72x = 161,913.60 × 48,805.92
  4. Step 4: Simplify right side
    108,000.72x = 7,902,342,208.51
  5. Step 5: Solve for x
    x = 7,902,342,208.51/108,000.72
  6. Step 6: Final answer
    x = 73,169.35

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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.