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Finding the Fourth Proportional to 132,762.80, 183,204.12 and 79,051.76

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Solution

The fourth proportional to 132,762.80, 183,204.12 and 79,051.76 is: 109,086.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,762.80 : 183,204.12 = 79,051.76 : x
  2. Step 2: Convert to fraction form
    132,762.80/183,204.12 = 79,051.76/x
  3. Step 3: Cross multiply
    132,762.80x = 183,204.12 × 79,051.76
  4. Step 4: Simplify right side
    132,762.80x = 14,482,608,125.25
  5. Step 5: Solve for x
    x = 14,482,608,125.25/132,762.80
  6. Step 6: Final answer
    x = 109,086.34

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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.