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Finding the Fourth Proportional to 108,499.53, 149,590.54 and 74,448.88

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Solution

The fourth proportional to 108,499.53, 149,590.54 and 74,448.88 is: 102,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,499.53 : 149,590.54 = 74,448.88 : x
  2. Step 2: Convert to fraction form
    108,499.53/149,590.54 = 74,448.88/x
  3. Step 3: Cross multiply
    108,499.53x = 149,590.54 × 74,448.88
  4. Step 4: Simplify right side
    108,499.53x = 11,136,848,161.60
  5. Step 5: Solve for x
    x = 11,136,848,161.60/108,499.53
  6. Step 6: Final answer
    x = 102,644.21

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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.