Home / 190,655.67-263,105.10-105,772.80

Finding the Fourth Proportional to 190,655.67, 263,105.10 and 105,772.80

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Solution

The fourth proportional to 190,655.67, 263,105.10 and 105,772.80 is: 145,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,655.67 : 263,105.10 = 105,772.80 : x
  2. Step 2: Convert to fraction form
    190,655.67/263,105.10 = 105,772.80/x
  3. Step 3: Cross multiply
    190,655.67x = 263,105.10 × 105,772.80
  4. Step 4: Simplify right side
    190,655.67x = 27,829,363,121.28
  5. Step 5: Solve for x
    x = 27,829,363,121.28/190,655.67
  6. Step 6: Final answer
    x = 145,966.62

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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.