Home / 140,756.39-194,243.90-76,226.12

Finding the Fourth Proportional to 140,756.39, 194,243.90 and 76,226.12

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Solution

The fourth proportional to 140,756.39, 194,243.90 and 76,226.12 is: 105,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,756.39 : 194,243.90 = 76,226.12 : x
  2. Step 2: Convert to fraction form
    140,756.39/194,243.90 = 76,226.12/x
  3. Step 3: Cross multiply
    140,756.39x = 194,243.90 × 76,226.12
  4. Step 4: Simplify right side
    140,756.39x = 14,806,459,506.84
  5. Step 5: Solve for x
    x = 14,806,459,506.84/140,756.39
  6. Step 6: Final answer
    x = 105,192.10

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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.