Home / 133,213.79-183,832.85-72,783.13

Finding the Fourth Proportional to 133,213.79, 183,832.85 and 72,783.13

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Solution

The fourth proportional to 133,213.79, 183,832.85 and 72,783.13 is: 100,439.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,213.79 : 183,832.85 = 72,783.13 : x
  2. Step 2: Convert to fraction form
    133,213.79/183,832.85 = 72,783.13/x
  3. Step 3: Cross multiply
    133,213.79x = 183,832.85 × 72,783.13
  4. Step 4: Simplify right side
    133,213.79x = 13,379,929,942.20
  5. Step 5: Solve for x
    x = 13,379,929,942.20/133,213.79
  6. Step 6: Final answer
    x = 100,439.53

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1.5x scale

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.