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Finding the Fourth Proportional to 108,115.79, 162,173.68 and 55,491.71

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Solution

The fourth proportional to 108,115.79, 162,173.68 and 55,491.71 is: 83,237.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,115.79 : 162,173.68 = 55,491.71 : x
  2. Step 2: Convert to fraction form
    108,115.79/162,173.68 = 55,491.71/x
  3. Step 3: Cross multiply
    108,115.79x = 162,173.68 × 55,491.71
  4. Step 4: Simplify right side
    108,115.79x = 8,999,293,870.60
  5. Step 5: Solve for x
    x = 8,999,293,870.60/108,115.79
  6. Step 6: Final answer
    x = 83,237.56

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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.