Home / 190,011.21-262,204.61-105,123.21

Finding the Fourth Proportional to 190,011.21, 262,204.61 and 105,123.21

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Solution

The fourth proportional to 190,011.21, 262,204.61 and 105,123.21 is: 145,064.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,011.21 : 262,204.61 = 105,123.21 : x
  2. Step 2: Convert to fraction form
    190,011.21/262,204.61 = 105,123.21/x
  3. Step 3: Cross multiply
    190,011.21x = 262,204.61 × 105,123.21
  4. Step 4: Simplify right side
    190,011.21x = 27,563,789,754.38
  5. Step 5: Solve for x
    x = 27,563,789,754.38/190,011.21
  6. Step 6: Final answer
    x = 145,064.02

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Half scale
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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.