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Finding the Fourth Proportional to 108,447.96, 149,650.02 and 66,001.80

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Solution

The fourth proportional to 108,447.96, 149,650.02 and 66,001.80 is: 91,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,447.96 : 149,650.02 = 66,001.80 : x
  2. Step 2: Convert to fraction form
    108,447.96/149,650.02 = 66,001.80/x
  3. Step 3: Cross multiply
    108,447.96x = 149,650.02 × 66,001.80
  4. Step 4: Simplify right side
    108,447.96x = 9,877,170,690.04
  5. Step 5: Solve for x
    x = 9,877,170,690.04/108,447.96
  6. Step 6: Final answer
    x = 91,077.51

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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.