Home / 120,092.28-179,259.03-105,905.01

Finding the Fourth Proportional to 120,092.28, 179,259.03 and 105,905.01

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Solution

The fourth proportional to 120,092.28, 179,259.03 and 105,905.01 is: 158,082.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,092.28 : 179,259.03 = 105,905.01 : x
  2. Step 2: Convert to fraction form
    120,092.28/179,259.03 = 105,905.01/x
  3. Step 3: Cross multiply
    120,092.28x = 179,259.03 × 105,905.01
  4. Step 4: Simplify right side
    120,092.28x = 18,984,429,364.74
  5. Step 5: Solve for x
    x = 18,984,429,364.74/120,092.28
  6. Step 6: Final answer
    x = 158,082.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.