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Finding the Fourth Proportional to 132,955, 183,374.13 and 85,212.88

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Solution

The fourth proportional to 132,955, 183,374.13 and 85,212.88 is: 117,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,955 : 183,374.13 = 85,212.88 : x
  2. Step 2: Convert to fraction form
    132,955/183,374.13 = 85,212.88/x
  3. Step 3: Cross multiply
    132,955x = 183,374.13 × 85,212.88
  4. Step 4: Simplify right side
    132,955x = 15,625,837,734.79
  5. Step 5: Solve for x
    x = 15,625,837,734.79/132,955
  6. Step 6: Final answer
    x = 117,527.27

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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.