Home / 103,743.60-155,396.70-92,662.80

Finding the Fourth Proportional to 103,743.60, 155,396.70 and 92,662.80

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Solution

The fourth proportional to 103,743.60, 155,396.70 and 92,662.80 is: 138,798.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,743.60 : 155,396.70 = 92,662.80 : x
  2. Step 2: Convert to fraction form
    103,743.60/155,396.70 = 92,662.80/x
  3. Step 3: Cross multiply
    103,743.60x = 155,396.70 × 92,662.80
  4. Step 4: Simplify right side
    103,743.60x = 14,399,493,332.76
  5. Step 5: Solve for x
    x = 14,399,493,332.76/103,743.60
  6. Step 6: Final answer
    x = 138,798.86

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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.