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Finding the Fourth Proportional to 108,065.34, 161,880.56 and 53,866.45

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Solution

The fourth proportional to 108,065.34, 161,880.56 and 53,866.45 is: 80,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,065.34 : 161,880.56 = 53,866.45 : x
  2. Step 2: Convert to fraction form
    108,065.34/161,880.56 = 53,866.45/x
  3. Step 3: Cross multiply
    108,065.34x = 161,880.56 × 53,866.45
  4. Step 4: Simplify right side
    108,065.34x = 8,719,931,226.23
  5. Step 5: Solve for x
    x = 8,719,931,226.23/108,065.34
  6. Step 6: Final answer
    x = 80,691.29

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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.