Home / 120,232.08-180,389.52-45,373.68

Finding the Fourth Proportional to 120,232.08, 180,389.52 and 45,373.68

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Solution

The fourth proportional to 120,232.08, 180,389.52 and 45,373.68 is: 68,076.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,232.08 : 180,389.52 = 45,373.68 : x
  2. Step 2: Convert to fraction form
    120,232.08/180,389.52 = 45,373.68/x
  3. Step 3: Cross multiply
    120,232.08x = 180,389.52 × 45,373.68
  4. Step 4: Simplify right side
    120,232.08x = 8,184,936,355.83
  5. Step 5: Solve for x
    x = 8,184,936,355.83/120,232.08
  6. Step 6: Final answer
    x = 68,076.14

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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.