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Finding the Fourth Proportional to 108,172.72, 150,042.10 and 105,295.60

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Solution

The fourth proportional to 108,172.72, 150,042.10 and 105,295.60 is: 146,051.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,172.72 : 150,042.10 = 105,295.60 : x
  2. Step 2: Convert to fraction form
    108,172.72/150,042.10 = 105,295.60/x
  3. Step 3: Cross multiply
    108,172.72x = 150,042.10 × 105,295.60
  4. Step 4: Simplify right side
    108,172.72x = 15,798,772,944.76
  5. Step 5: Solve for x
    x = 15,798,772,944.76/108,172.72
  6. Step 6: Final answer
    x = 146,051.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.