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Finding the Fourth Proportional to 108,805.34, 150,302.73 and 103,484.88

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Solution

The fourth proportional to 108,805.34, 150,302.73 and 103,484.88 is: 142,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,805.34 : 150,302.73 = 103,484.88 : x
  2. Step 2: Convert to fraction form
    108,805.34/150,302.73 = 103,484.88/x
  3. Step 3: Cross multiply
    108,805.34x = 150,302.73 × 103,484.88
  4. Step 4: Simplify right side
    108,805.34x = 15,554,059,977.72
  5. Step 5: Solve for x
    x = 15,554,059,977.72/108,805.34
  6. Step 6: Final answer
    x = 142,953.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.