Home / 140,988.46-194,564.12-76,457.67

Finding the Fourth Proportional to 140,988.46, 194,564.12 and 76,457.67

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Solution

The fourth proportional to 140,988.46, 194,564.12 and 76,457.67 is: 105,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,988.46 : 194,564.12 = 76,457.67 : x
  2. Step 2: Convert to fraction form
    140,988.46/194,564.12 = 76,457.67/x
  3. Step 3: Cross multiply
    140,988.46x = 194,564.12 × 76,457.67
  4. Step 4: Simplify right side
    140,988.46x = 14,875,919,280.80
  5. Step 5: Solve for x
    x = 14,875,919,280.80/140,988.46
  6. Step 6: Final answer
    x = 105,511.61

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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.