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Finding the Fourth Proportional to 170,265.60, 255,398.40 and 79,071.82

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Solution

The fourth proportional to 170,265.60, 255,398.40 and 79,071.82 is: 118,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,265.60 : 255,398.40 = 79,071.82 : x
  2. Step 2: Convert to fraction form
    170,265.60/255,398.40 = 79,071.82/x
  3. Step 3: Cross multiply
    170,265.60x = 255,398.40 × 79,071.82
  4. Step 4: Simplify right side
    170,265.60x = 20,194,815,674.59
  5. Step 5: Solve for x
    x = 20,194,815,674.59/170,265.60
  6. Step 6: Final answer
    x = 118,607.73

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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.