Home / 103,636.60-155,236.20-92,555.80

Finding the Fourth Proportional to 103,636.60, 155,236.20 and 92,555.80

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Solution

The fourth proportional to 103,636.60, 155,236.20 and 92,555.80 is: 138,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.60 : 155,236.20 = 92,555.80 : x
  2. Step 2: Convert to fraction form
    103,636.60/155,236.20 = 92,555.80/x
  3. Step 3: Cross multiply
    103,636.60x = 155,236.20 × 92,555.80
  4. Step 4: Simplify right side
    103,636.60x = 14,368,010,679.96
  5. Step 5: Solve for x
    x = 14,368,010,679.96/103,636.60
  6. Step 6: Final answer
    x = 138,638.38

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1.5x scale

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.