Home / 120,558.05-180,812.36-45,652.35

Finding the Fourth Proportional to 120,558.05, 180,812.36 and 45,652.35

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Solution

The fourth proportional to 120,558.05, 180,812.36 and 45,652.35 is: 68,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,558.05 : 180,812.36 = 45,652.35 : x
  2. Step 2: Convert to fraction form
    120,558.05/180,812.36 = 45,652.35/x
  3. Step 3: Cross multiply
    120,558.05x = 180,812.36 × 45,652.35
  4. Step 4: Simplify right side
    120,558.05x = 8,254,509,257.18
  5. Step 5: Solve for x
    x = 8,254,509,257.18/120,558.05
  6. Step 6: Final answer
    x = 68,469.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.