Home / 68,120.10-102,180.15-38,595.60

Finding the Fourth Proportional to 68,120.10, 102,180.15 and 38,595.60

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Solution

The fourth proportional to 68,120.10, 102,180.15 and 38,595.60 is: 57,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,120.10 : 102,180.15 = 38,595.60 : x
  2. Step 2: Convert to fraction form
    68,120.10/102,180.15 = 38,595.60/x
  3. Step 3: Cross multiply
    68,120.10x = 102,180.15 × 38,595.60
  4. Step 4: Simplify right side
    68,120.10x = 3,943,704,197.34
  5. Step 5: Solve for x
    x = 3,943,704,197.34/68,120.10
  6. Step 6: Final answer
    x = 57,893.40

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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.