Home / 140,439.84-193,784.58-80,011.68

Finding the Fourth Proportional to 140,439.84, 193,784.58 and 80,011.68

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Solution

The fourth proportional to 140,439.84, 193,784.58 and 80,011.68 is: 110,403.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,439.84 : 193,784.58 = 80,011.68 : x
  2. Step 2: Convert to fraction form
    140,439.84/193,784.58 = 80,011.68/x
  3. Step 3: Cross multiply
    140,439.84x = 193,784.58 × 80,011.68
  4. Step 4: Simplify right side
    140,439.84x = 15,505,029,803.89
  5. Step 5: Solve for x
    x = 15,505,029,803.89/140,439.84
  6. Step 6: Final answer
    x = 110,403.36

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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.