Home / 140,181.72-193,451.40-76,520.85

Finding the Fourth Proportional to 140,181.72, 193,451.40 and 76,520.85

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Solution

The fourth proportional to 140,181.72, 193,451.40 and 76,520.85 is: 105,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,181.72 : 193,451.40 = 76,520.85 : x
  2. Step 2: Convert to fraction form
    140,181.72/193,451.40 = 76,520.85/x
  3. Step 3: Cross multiply
    140,181.72x = 193,451.40 × 76,520.85
  4. Step 4: Simplify right side
    140,181.72x = 14,803,065,561.69
  5. Step 5: Solve for x
    x = 14,803,065,561.69/140,181.72
  6. Step 6: Final answer
    x = 105,599.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.