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Finding the Fourth Proportional to 142,597.64, 214,106.73 and 79,540.97

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Solution

The fourth proportional to 142,597.64, 214,106.73 and 79,540.97 is: 119,428.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,597.64 : 214,106.73 = 79,540.97 : x
  2. Step 2: Convert to fraction form
    142,597.64/214,106.73 = 79,540.97/x
  3. Step 3: Cross multiply
    142,597.64x = 214,106.73 × 79,540.97
  4. Step 4: Simplify right side
    142,597.64x = 17,030,255,917.19
  5. Step 5: Solve for x
    x = 17,030,255,917.19/142,597.64
  6. Step 6: Final answer
    x = 119,428.73

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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.