Home / 133,214.72-183,834.24-72,784.64

Finding the Fourth Proportional to 133,214.72, 183,834.24 and 72,784.64

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Solution

The fourth proportional to 133,214.72, 183,834.24 and 72,784.64 is: 100,441.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,214.72 : 183,834.24 = 72,784.64 : x
  2. Step 2: Convert to fraction form
    133,214.72/183,834.24 = 72,784.64/x
  3. Step 3: Cross multiply
    133,214.72x = 183,834.24 × 72,784.64
  4. Step 4: Simplify right side
    133,214.72x = 13,380,308,978.07
  5. Step 5: Solve for x
    x = 13,380,308,978.07/133,214.72
  6. Step 6: Final answer
    x = 100,441.67

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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.