Home / 140,285.10-193,592.16-76,622.88

Finding the Fourth Proportional to 140,285.10, 193,592.16 and 76,622.88

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Solution

The fourth proportional to 140,285.10, 193,592.16 and 76,622.88 is: 105,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,285.10 : 193,592.16 = 76,622.88 : x
  2. Step 2: Convert to fraction form
    140,285.10/193,592.16 = 76,622.88/x
  3. Step 3: Cross multiply
    140,285.10x = 193,592.16 × 76,622.88
  4. Step 4: Simplify right side
    140,285.10x = 14,833,588,844.62
  5. Step 5: Solve for x
    x = 14,833,588,844.62/140,285.10
  6. Step 6: Final answer
    x = 105,738.88

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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.