Home / 133,944.10-200,624.55-81,261.70

Finding the Fourth Proportional to 133,944.10, 200,624.55 and 81,261.70

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Solution

The fourth proportional to 133,944.10, 200,624.55 and 81,261.70 is: 121,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,944.10 : 200,624.55 = 81,261.70 : x
  2. Step 2: Convert to fraction form
    133,944.10/200,624.55 = 81,261.70/x
  3. Step 3: Cross multiply
    133,944.10x = 200,624.55 × 81,261.70
  4. Step 4: Simplify right side
    133,944.10x = 16,303,091,994.74
  5. Step 5: Solve for x
    x = 16,303,091,994.74/133,944.10
  6. Step 6: Final answer
    x = 121,715.64

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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.