Home / 193,135.40-289,703.10-68,460.20

Finding the Fourth Proportional to 193,135.40, 289,703.10 and 68,460.20

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Solution

The fourth proportional to 193,135.40, 289,703.10 and 68,460.20 is: 102,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,135.40 : 289,703.10 = 68,460.20 : x
  2. Step 2: Convert to fraction form
    193,135.40/289,703.10 = 68,460.20/x
  3. Step 3: Cross multiply
    193,135.40x = 289,703.10 × 68,460.20
  4. Step 4: Simplify right side
    193,135.40x = 19,833,132,166.62
  5. Step 5: Solve for x
    x = 19,833,132,166.62/193,135.40
  6. Step 6: Final answer
    x = 102,690.30

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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.