Home / 140,276.10-193,585.21-76,616.90

Finding the Fourth Proportional to 140,276.10, 193,585.21 and 76,616.90

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Solution

The fourth proportional to 140,276.10, 193,585.21 and 76,616.90 is: 105,733.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,276.10 : 193,585.21 = 76,616.90 : x
  2. Step 2: Convert to fraction form
    140,276.10/193,585.21 = 76,616.90/x
  3. Step 3: Cross multiply
    140,276.10x = 193,585.21 × 76,616.90
  4. Step 4: Simplify right side
    140,276.10x = 14,831,898,676.05
  5. Step 5: Solve for x
    x = 14,831,898,676.05/140,276.10
  6. Step 6: Final answer
    x = 105,733.61

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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.